# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

require 'date'
require 'google/apis/core/base_service'
require 'google/apis/core/json_representation'
require 'google/apis/core/hashable'
require 'google/apis/errors'

module Google
  module Apis
    module FirestoreV1
      
      # An array value.
      class ArrayValue
        include Google::Apis::Core::Hashable
      
        # Values in the array.
        # Corresponds to the JSON property `values`
        # @return [Array<Google::Apis::FirestoreV1::Value>]
        attr_accessor :values
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @values = args[:values] if args.key?(:values)
        end
      end
      
      # The request for Firestore.BatchGetDocuments.
      class BatchGetDocumentsRequest
        include Google::Apis::Core::Hashable
      
        # The names of the documents to retrieve. In the format: `projects/`project_id`/
        # databases/`database_id`/documents/`document_path``. The request will fail if
        # any of the document is not a child resource of the given `database`. Duplicate
        # names will be elided.
        # Corresponds to the JSON property `documents`
        # @return [Array<String>]
        attr_accessor :documents
      
        # A set of field paths on a document. Used to restrict a get or update operation
        # on a document to a subset of its fields. This is different from standard field
        # masks, as this is always scoped to a Document, and takes in account the
        # dynamic nature of Value.
        # Corresponds to the JSON property `mask`
        # @return [Google::Apis::FirestoreV1::DocumentMask]
        attr_accessor :mask
      
        # Options for creating a new transaction.
        # Corresponds to the JSON property `newTransaction`
        # @return [Google::Apis::FirestoreV1::TransactionOptions]
        attr_accessor :new_transaction
      
        # Reads documents as they were at the given time. This may not be older than 270
        # seconds.
        # Corresponds to the JSON property `readTime`
        # @return [String]
        attr_accessor :read_time
      
        # Reads documents in a transaction.
        # Corresponds to the JSON property `transaction`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :transaction
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @documents = args[:documents] if args.key?(:documents)
          @mask = args[:mask] if args.key?(:mask)
          @new_transaction = args[:new_transaction] if args.key?(:new_transaction)
          @read_time = args[:read_time] if args.key?(:read_time)
          @transaction = args[:transaction] if args.key?(:transaction)
        end
      end
      
      # The streamed response for Firestore.BatchGetDocuments.
      class BatchGetDocumentsResponse
        include Google::Apis::Core::Hashable
      
        # A Firestore document. Must not exceed 1 MiB - 4 bytes.
        # Corresponds to the JSON property `found`
        # @return [Google::Apis::FirestoreV1::Document]
        attr_accessor :found
      
        # A document name that was requested but does not exist. In the format: `
        # projects/`project_id`/databases/`database_id`/documents/`document_path``.
        # Corresponds to the JSON property `missing`
        # @return [String]
        attr_accessor :missing
      
        # The time at which the document was read. This may be monotically increasing,
        # in this case the previous documents in the result stream are guaranteed not to
        # have changed between their read_time and this one.
        # Corresponds to the JSON property `readTime`
        # @return [String]
        attr_accessor :read_time
      
        # The transaction that was started as part of this request. Will only be set in
        # the first response, and only if BatchGetDocumentsRequest.new_transaction was
        # set in the request.
        # Corresponds to the JSON property `transaction`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :transaction
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @found = args[:found] if args.key?(:found)
          @missing = args[:missing] if args.key?(:missing)
          @read_time = args[:read_time] if args.key?(:read_time)
          @transaction = args[:transaction] if args.key?(:transaction)
        end
      end
      
      # The request for Firestore.BatchWrite.
      class BatchWriteRequest
        include Google::Apis::Core::Hashable
      
        # Labels associated with this batch write.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # The writes to apply. Method does not apply writes atomically and does not
        # guarantee ordering. Each write succeeds or fails independently. You cannot
        # write to the same document more than once per request.
        # Corresponds to the JSON property `writes`
        # @return [Array<Google::Apis::FirestoreV1::Write>]
        attr_accessor :writes
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @labels = args[:labels] if args.key?(:labels)
          @writes = args[:writes] if args.key?(:writes)
        end
      end
      
      # The response from Firestore.BatchWrite.
      class BatchWriteResponse
        include Google::Apis::Core::Hashable
      
        # The status of applying the writes. This i-th write status corresponds to the i-
        # th write in the request.
        # Corresponds to the JSON property `status`
        # @return [Array<Google::Apis::FirestoreV1::Status>]
        attr_accessor :status
      
        # The result of applying the writes. This i-th write result corresponds to the i-
        # th write in the request.
        # Corresponds to the JSON property `writeResults`
        # @return [Array<Google::Apis::FirestoreV1::WriteResult>]
        attr_accessor :write_results
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @status = args[:status] if args.key?(:status)
          @write_results = args[:write_results] if args.key?(:write_results)
        end
      end
      
      # The request for Firestore.BeginTransaction.
      class BeginTransactionRequest
        include Google::Apis::Core::Hashable
      
        # Options for creating a new transaction.
        # Corresponds to the JSON property `options`
        # @return [Google::Apis::FirestoreV1::TransactionOptions]
        attr_accessor :options
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @options = args[:options] if args.key?(:options)
        end
      end
      
      # The response for Firestore.BeginTransaction.
      class BeginTransactionResponse
        include Google::Apis::Core::Hashable
      
        # The transaction that was started.
        # Corresponds to the JSON property `transaction`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :transaction
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @transaction = args[:transaction] if args.key?(:transaction)
        end
      end
      
      # A selection of a collection, such as `messages as m1`.
      class CollectionSelector
        include Google::Apis::Core::Hashable
      
        # When false, selects only collections that are immediate children of the `
        # parent` specified in the containing `RunQueryRequest`. When true, selects all
        # descendant collections.
        # Corresponds to the JSON property `allDescendants`
        # @return [Boolean]
        attr_accessor :all_descendants
        alias_method :all_descendants?, :all_descendants
      
        # The collection ID. When set, selects only collections with this ID.
        # Corresponds to the JSON property `collectionId`
        # @return [String]
        attr_accessor :collection_id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @all_descendants = args[:all_descendants] if args.key?(:all_descendants)
          @collection_id = args[:collection_id] if args.key?(:collection_id)
        end
      end
      
      # The request for Firestore.Commit.
      class CommitRequest
        include Google::Apis::Core::Hashable
      
        # If set, applies all writes in this transaction, and commits it.
        # Corresponds to the JSON property `transaction`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :transaction
      
        # The writes to apply. Always executed atomically and in order.
        # Corresponds to the JSON property `writes`
        # @return [Array<Google::Apis::FirestoreV1::Write>]
        attr_accessor :writes
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @transaction = args[:transaction] if args.key?(:transaction)
          @writes = args[:writes] if args.key?(:writes)
        end
      end
      
      # The response for Firestore.Commit.
      class CommitResponse
        include Google::Apis::Core::Hashable
      
        # The time at which the commit occurred. Any read with an equal or greater `
        # read_time` is guaranteed to see the effects of the commit.
        # Corresponds to the JSON property `commitTime`
        # @return [String]
        attr_accessor :commit_time
      
        # The result of applying the writes. This i-th write result corresponds to the i-
        # th write in the request.
        # Corresponds to the JSON property `writeResults`
        # @return [Array<Google::Apis::FirestoreV1::WriteResult>]
        attr_accessor :write_results
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @commit_time = args[:commit_time] if args.key?(:commit_time)
          @write_results = args[:write_results] if args.key?(:write_results)
        end
      end
      
      # A filter that merges multiple other filters using the given operator.
      class CompositeFilter
        include Google::Apis::Core::Hashable
      
        # The list of filters to combine. Must contain at least one filter.
        # Corresponds to the JSON property `filters`
        # @return [Array<Google::Apis::FirestoreV1::Filter>]
        attr_accessor :filters
      
        # The operator for combining multiple filters.
        # Corresponds to the JSON property `op`
        # @return [String]
        attr_accessor :op
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @filters = args[:filters] if args.key?(:filters)
          @op = args[:op] if args.key?(:op)
        end
      end
      
      # A position in a query result set.
      class Cursor
        include Google::Apis::Core::Hashable
      
        # If the position is just before or just after the given values, relative to the
        # sort order defined by the query.
        # Corresponds to the JSON property `before`
        # @return [Boolean]
        attr_accessor :before
        alias_method :before?, :before
      
        # The values that represent a position, in the order they appear in the order by
        # clause of a query. Can contain fewer values than specified in the order by
        # clause.
        # Corresponds to the JSON property `values`
        # @return [Array<Google::Apis::FirestoreV1::Value>]
        attr_accessor :values
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @before = args[:before] if args.key?(:before)
          @values = args[:values] if args.key?(:values)
        end
      end
      
      # A Firestore document. Must not exceed 1 MiB - 4 bytes.
      class Document
        include Google::Apis::Core::Hashable
      
        # Output only. The time at which the document was created. This value increases
        # monotonically when a document is deleted then recreated. It can also be
        # compared to values from other documents and the `read_time` of a query.
        # Corresponds to the JSON property `createTime`
        # @return [String]
        attr_accessor :create_time
      
        # The document's fields. The map keys represent field names. A simple field name
        # contains only characters `a` to `z`, `A` to `Z`, `0` to `9`, or `_`, and must
        # not start with `0` to `9`. For example, `foo_bar_17`. Field names matching the
        # regular expression `__.*__` are reserved. Reserved field names are forbidden
        # except in certain documented contexts. The map keys, represented as UTF-8,
        # must not exceed 1,500 bytes and cannot be empty. Field paths may be used in
        # other contexts to refer to structured fields defined here. For `map_value`,
        # the field path is represented by the simple or quoted field names of the
        # containing fields, delimited by `.`. For example, the structured field `"foo" :
        # ` map_value: ` "x&y" : ` string_value: "hello" ```` would be represented by
        # the field path `foo.x&y`. Within a field path, a quoted field name starts and
        # ends with `` ` `` and may contain any character. Some characters, including ``
        # ` ``, must be escaped using a `\`. For example, `` `x&y` `` represents `x&y`
        # and `` `bak\`tik` `` represents `` bak`tik ``.
        # Corresponds to the JSON property `fields`
        # @return [Hash<String,Google::Apis::FirestoreV1::Value>]
        attr_accessor :fields
      
        # The resource name of the document, for example `projects/`project_id`/
        # databases/`database_id`/documents/`document_path``.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Output only. The time at which the document was last changed. This value is
        # initially set to the `create_time` then increases monotonically with each
        # change to the document. It can also be compared to values from other documents
        # and the `read_time` of a query.
        # Corresponds to the JSON property `updateTime`
        # @return [String]
        attr_accessor :update_time
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @create_time = args[:create_time] if args.key?(:create_time)
          @fields = args[:fields] if args.key?(:fields)
          @name = args[:name] if args.key?(:name)
          @update_time = args[:update_time] if args.key?(:update_time)
        end
      end
      
      # A Document has changed. May be the result of multiple writes, including
      # deletes, that ultimately resulted in a new value for the Document. Multiple
      # DocumentChange messages may be returned for the same logical change, if
      # multiple targets are affected.
      class DocumentChange
        include Google::Apis::Core::Hashable
      
        # A Firestore document. Must not exceed 1 MiB - 4 bytes.
        # Corresponds to the JSON property `document`
        # @return [Google::Apis::FirestoreV1::Document]
        attr_accessor :document
      
        # A set of target IDs for targets that no longer match this document.
        # Corresponds to the JSON property `removedTargetIds`
        # @return [Array<Fixnum>]
        attr_accessor :removed_target_ids
      
        # A set of target IDs of targets that match this document.
        # Corresponds to the JSON property `targetIds`
        # @return [Array<Fixnum>]
        attr_accessor :target_ids
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @document = args[:document] if args.key?(:document)
          @removed_target_ids = args[:removed_target_ids] if args.key?(:removed_target_ids)
          @target_ids = args[:target_ids] if args.key?(:target_ids)
        end
      end
      
      # A Document has been deleted. May be the result of multiple writes, including
      # updates, the last of which deleted the Document. Multiple DocumentDelete
      # messages may be returned for the same logical delete, if multiple targets are
      # affected.
      class DocumentDelete
        include Google::Apis::Core::Hashable
      
        # The resource name of the Document that was deleted.
        # Corresponds to the JSON property `document`
        # @return [String]
        attr_accessor :document
      
        # The read timestamp at which the delete was observed. Greater or equal to the `
        # commit_time` of the delete.
        # Corresponds to the JSON property `readTime`
        # @return [String]
        attr_accessor :read_time
      
        # A set of target IDs for targets that previously matched this entity.
        # Corresponds to the JSON property `removedTargetIds`
        # @return [Array<Fixnum>]
        attr_accessor :removed_target_ids
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @document = args[:document] if args.key?(:document)
          @read_time = args[:read_time] if args.key?(:read_time)
          @removed_target_ids = args[:removed_target_ids] if args.key?(:removed_target_ids)
        end
      end
      
      # A set of field paths on a document. Used to restrict a get or update operation
      # on a document to a subset of its fields. This is different from standard field
      # masks, as this is always scoped to a Document, and takes in account the
      # dynamic nature of Value.
      class DocumentMask
        include Google::Apis::Core::Hashable
      
        # The list of field paths in the mask. See Document.fields for a field path
        # syntax reference.
        # Corresponds to the JSON property `fieldPaths`
        # @return [Array<String>]
        attr_accessor :field_paths
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @field_paths = args[:field_paths] if args.key?(:field_paths)
        end
      end
      
      # A Document has been removed from the view of the targets. Sent if the document
      # is no longer relevant to a target and is out of view. Can be sent instead of a
      # DocumentDelete or a DocumentChange if the server can not send the new value of
      # the document. Multiple DocumentRemove messages may be returned for the same
      # logical write or delete, if multiple targets are affected.
      class DocumentRemove
        include Google::Apis::Core::Hashable
      
        # The resource name of the Document that has gone out of view.
        # Corresponds to the JSON property `document`
        # @return [String]
        attr_accessor :document
      
        # The read timestamp at which the remove was observed. Greater or equal to the `
        # commit_time` of the change/delete/remove.
        # Corresponds to the JSON property `readTime`
        # @return [String]
        attr_accessor :read_time
      
        # A set of target IDs for targets that previously matched this document.
        # Corresponds to the JSON property `removedTargetIds`
        # @return [Array<Fixnum>]
        attr_accessor :removed_target_ids
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @document = args[:document] if args.key?(:document)
          @read_time = args[:read_time] if args.key?(:read_time)
          @removed_target_ids = args[:removed_target_ids] if args.key?(:removed_target_ids)
        end
      end
      
      # A transformation of a document.
      class DocumentTransform
        include Google::Apis::Core::Hashable
      
        # The name of the document to transform.
        # Corresponds to the JSON property `document`
        # @return [String]
        attr_accessor :document
      
        # The list of transformations to apply to the fields of the document, in order.
        # This must not be empty.
        # Corresponds to the JSON property `fieldTransforms`
        # @return [Array<Google::Apis::FirestoreV1::FieldTransform>]
        attr_accessor :field_transforms
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @document = args[:document] if args.key?(:document)
          @field_transforms = args[:field_transforms] if args.key?(:field_transforms)
        end
      end
      
      # A target specified by a set of documents names.
      class DocumentsTarget
        include Google::Apis::Core::Hashable
      
        # The names of the documents to retrieve. In the format: `projects/`project_id`/
        # databases/`database_id`/documents/`document_path``. The request will fail if
        # any of the document is not a child resource of the given `database`. Duplicate
        # names will be elided.
        # Corresponds to the JSON property `documents`
        # @return [Array<String>]
        attr_accessor :documents
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @documents = args[:documents] if args.key?(:documents)
        end
      end
      
      # A generic empty message that you can re-use to avoid defining duplicated empty
      # messages in your APIs. A typical example is to use it as the request or the
      # response type of an API method. For instance: service Foo ` rpc Bar(google.
      # protobuf.Empty) returns (google.protobuf.Empty); ` The JSON representation for
      # `Empty` is empty JSON object ````.
      class Empty
        include Google::Apis::Core::Hashable
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
        end
      end
      
      # A digest of all the documents that match a given target.
      class ExistenceFilter
        include Google::Apis::Core::Hashable
      
        # The total count of documents that match target_id. If different from the count
        # of documents in the client that match, the client must manually determine
        # which documents no longer match the target.
        # Corresponds to the JSON property `count`
        # @return [Fixnum]
        attr_accessor :count
      
        # The target ID to which this filter applies.
        # Corresponds to the JSON property `targetId`
        # @return [Fixnum]
        attr_accessor :target_id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @count = args[:count] if args.key?(:count)
          @target_id = args[:target_id] if args.key?(:target_id)
        end
      end
      
      # A filter on a specific field.
      class FieldFilter
        include Google::Apis::Core::Hashable
      
        # A reference to a field, such as `max(messages.time) as max_time`.
        # Corresponds to the JSON property `field`
        # @return [Google::Apis::FirestoreV1::FieldReference]
        attr_accessor :field
      
        # The operator to filter by.
        # Corresponds to the JSON property `op`
        # @return [String]
        attr_accessor :op
      
        # A message that can hold any of the supported value types.
        # Corresponds to the JSON property `value`
        # @return [Google::Apis::FirestoreV1::Value]
        attr_accessor :value
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @field = args[:field] if args.key?(:field)
          @op = args[:op] if args.key?(:op)
          @value = args[:value] if args.key?(:value)
        end
      end
      
      # A reference to a field, such as `max(messages.time) as max_time`.
      class FieldReference
        include Google::Apis::Core::Hashable
      
        # 
        # Corresponds to the JSON property `fieldPath`
        # @return [String]
        attr_accessor :field_path
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @field_path = args[:field_path] if args.key?(:field_path)
        end
      end
      
      # A transformation of a field of the document.
      class FieldTransform
        include Google::Apis::Core::Hashable
      
        # An array value.
        # Corresponds to the JSON property `appendMissingElements`
        # @return [Google::Apis::FirestoreV1::ArrayValue]
        attr_accessor :append_missing_elements
      
        # The path of the field. See Document.fields for the field path syntax reference.
        # Corresponds to the JSON property `fieldPath`
        # @return [String]
        attr_accessor :field_path
      
        # A message that can hold any of the supported value types.
        # Corresponds to the JSON property `increment`
        # @return [Google::Apis::FirestoreV1::Value]
        attr_accessor :increment
      
        # A message that can hold any of the supported value types.
        # Corresponds to the JSON property `maximum`
        # @return [Google::Apis::FirestoreV1::Value]
        attr_accessor :maximum
      
        # A message that can hold any of the supported value types.
        # Corresponds to the JSON property `minimum`
        # @return [Google::Apis::FirestoreV1::Value]
        attr_accessor :minimum
      
        # An array value.
        # Corresponds to the JSON property `removeAllFromArray`
        # @return [Google::Apis::FirestoreV1::ArrayValue]
        attr_accessor :remove_all_from_array
      
        # Sets the field to the given server value.
        # Corresponds to the JSON property `setToServerValue`
        # @return [String]
        attr_accessor :set_to_server_value
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @append_missing_elements = args[:append_missing_elements] if args.key?(:append_missing_elements)
          @field_path = args[:field_path] if args.key?(:field_path)
          @increment = args[:increment] if args.key?(:increment)
          @maximum = args[:maximum] if args.key?(:maximum)
          @minimum = args[:minimum] if args.key?(:minimum)
          @remove_all_from_array = args[:remove_all_from_array] if args.key?(:remove_all_from_array)
          @set_to_server_value = args[:set_to_server_value] if args.key?(:set_to_server_value)
        end
      end
      
      # A filter.
      class Filter
        include Google::Apis::Core::Hashable
      
        # A filter that merges multiple other filters using the given operator.
        # Corresponds to the JSON property `compositeFilter`
        # @return [Google::Apis::FirestoreV1::CompositeFilter]
        attr_accessor :composite_filter
      
        # A filter on a specific field.
        # Corresponds to the JSON property `fieldFilter`
        # @return [Google::Apis::FirestoreV1::FieldFilter]
        attr_accessor :field_filter
      
        # A filter with a single operand.
        # Corresponds to the JSON property `unaryFilter`
        # @return [Google::Apis::FirestoreV1::UnaryFilter]
        attr_accessor :unary_filter
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @composite_filter = args[:composite_filter] if args.key?(:composite_filter)
          @field_filter = args[:field_filter] if args.key?(:field_filter)
          @unary_filter = args[:unary_filter] if args.key?(:unary_filter)
        end
      end
      
      # A Cloud Firestore Database in Native Mode. Currently one database is allowed
      # per cloud project. It is named '(default)'
      class GoogleFirestoreAdminV1Database
        include Google::Apis::Core::Hashable
      
        # The concurrency control mode to use for this database.
        # Corresponds to the JSON property `concurrencyMode`
        # @return [String]
        attr_accessor :concurrency_mode
      
        # This checksum is computed by the server based on the value of other fields,
        # and may be sent on update and delete requests to ensure the client has an up-
        # to-date value before proceeding.
        # Corresponds to the JSON property `etag`
        # @return [String]
        attr_accessor :etag
      
        # The location of the database. Available databases are listed at https://cloud.
        # google.com/firestore/docs/locations.
        # Corresponds to the JSON property `locationId`
        # @return [String]
        attr_accessor :location_id
      
        # The resource name of the Database. Format: `projects/`project`/databases/`
        # database``
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The type of the database. See https://cloud.google.com/datastore/docs/
        # firestore-or-datastore for information about how to choose.
        # Corresponds to the JSON property `type`
        # @return [String]
        attr_accessor :type
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @concurrency_mode = args[:concurrency_mode] if args.key?(:concurrency_mode)
          @etag = args[:etag] if args.key?(:etag)
          @location_id = args[:location_id] if args.key?(:location_id)
          @name = args[:name] if args.key?(:name)
          @type = args[:type] if args.key?(:type)
        end
      end
      
      # Metadata for google.longrunning.Operation results from FirestoreAdmin.
      # ExportDocuments.
      class GoogleFirestoreAdminV1ExportDocumentsMetadata
        include Google::Apis::Core::Hashable
      
        # Which collection ids are being exported.
        # Corresponds to the JSON property `collectionIds`
        # @return [Array<String>]
        attr_accessor :collection_ids
      
        # The time this operation completed. Will be unset if operation still in
        # progress.
        # Corresponds to the JSON property `endTime`
        # @return [String]
        attr_accessor :end_time
      
        # The state of the export operation.
        # Corresponds to the JSON property `operationState`
        # @return [String]
        attr_accessor :operation_state
      
        # Where the entities are being exported to.
        # Corresponds to the JSON property `outputUriPrefix`
        # @return [String]
        attr_accessor :output_uri_prefix
      
        # Describes the progress of the operation. Unit of work is generic and must be
        # interpreted based on where Progress is used.
        # Corresponds to the JSON property `progressBytes`
        # @return [Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Progress]
        attr_accessor :progress_bytes
      
        # Describes the progress of the operation. Unit of work is generic and must be
        # interpreted based on where Progress is used.
        # Corresponds to the JSON property `progressDocuments`
        # @return [Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Progress]
        attr_accessor :progress_documents
      
        # The time this operation started.
        # Corresponds to the JSON property `startTime`
        # @return [String]
        attr_accessor :start_time
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @collection_ids = args[:collection_ids] if args.key?(:collection_ids)
          @end_time = args[:end_time] if args.key?(:end_time)
          @operation_state = args[:operation_state] if args.key?(:operation_state)
          @output_uri_prefix = args[:output_uri_prefix] if args.key?(:output_uri_prefix)
          @progress_bytes = args[:progress_bytes] if args.key?(:progress_bytes)
          @progress_documents = args[:progress_documents] if args.key?(:progress_documents)
          @start_time = args[:start_time] if args.key?(:start_time)
        end
      end
      
      # The request for FirestoreAdmin.ExportDocuments.
      class GoogleFirestoreAdminV1ExportDocumentsRequest
        include Google::Apis::Core::Hashable
      
        # Which collection ids to export. Unspecified means all collections.
        # Corresponds to the JSON property `collectionIds`
        # @return [Array<String>]
        attr_accessor :collection_ids
      
        # The output URI. Currently only supports Google Cloud Storage URIs of the form:
        # `gs://BUCKET_NAME[/NAMESPACE_PATH]`, where `BUCKET_NAME` is the name of the
        # Google Cloud Storage bucket and `NAMESPACE_PATH` is an optional Google Cloud
        # Storage namespace path. When choosing a name, be sure to consider Google Cloud
        # Storage naming guidelines: https://cloud.google.com/storage/docs/naming. If
        # the URI is a bucket (without a namespace path), a prefix will be generated
        # based on the start time.
        # Corresponds to the JSON property `outputUriPrefix`
        # @return [String]
        attr_accessor :output_uri_prefix
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @collection_ids = args[:collection_ids] if args.key?(:collection_ids)
          @output_uri_prefix = args[:output_uri_prefix] if args.key?(:output_uri_prefix)
        end
      end
      
      # Returned in the google.longrunning.Operation response field.
      class GoogleFirestoreAdminV1ExportDocumentsResponse
        include Google::Apis::Core::Hashable
      
        # Location of the output files. This can be used to begin an import into Cloud
        # Firestore (this project or another project) after the operation completes
        # successfully.
        # Corresponds to the JSON property `outputUriPrefix`
        # @return [String]
        attr_accessor :output_uri_prefix
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @output_uri_prefix = args[:output_uri_prefix] if args.key?(:output_uri_prefix)
        end
      end
      
      # Represents a single field in the database. Fields are grouped by their "
      # Collection Group", which represent all collections in the database with the
      # same id.
      class GoogleFirestoreAdminV1Field
        include Google::Apis::Core::Hashable
      
        # The index configuration for this field.
        # Corresponds to the JSON property `indexConfig`
        # @return [Google::Apis::FirestoreV1::GoogleFirestoreAdminV1IndexConfig]
        attr_accessor :index_config
      
        # Required. A field name of the form `projects/`project_id`/databases/`
        # database_id`/collectionGroups/`collection_id`/fields/`field_path`` A field
        # path may be a simple field name, e.g. `address` or a path to fields within
        # map_value , e.g. `address.city`, or a special field path. The only valid
        # special field is `*`, which represents any field. Field paths may be quoted
        # using ` (backtick). The only character that needs to be escaped within a
        # quoted field path is the backtick character itself, escaped using a backslash.
        # Special characters in field paths that must be quoted include: `*`, `.`, ``` (
        # backtick), `[`, `]`, as well as any ascii symbolic characters. Examples: (Note:
        # Comments here are written in markdown syntax, so there is an additional layer
        # of backticks to represent a code block) `\`address.city\`` represents a field
        # named `address.city`, not the map key `city` in the field `address`. `\`*\``
        # represents a field named `*`, not any field. A special `Field` contains the
        # default indexing settings for all fields. This field's resource name is: `
        # projects/`project_id`/databases/`database_id`/collectionGroups/__default__/
        # fields/*` Indexes defined on this `Field` will be applied to all fields which
        # do not have their own `Field` index configuration.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @index_config = args[:index_config] if args.key?(:index_config)
          @name = args[:name] if args.key?(:name)
        end
      end
      
      # Metadata for google.longrunning.Operation results from FirestoreAdmin.
      # UpdateField.
      class GoogleFirestoreAdminV1FieldOperationMetadata
        include Google::Apis::Core::Hashable
      
        # The time this operation completed. Will be unset if operation still in
        # progress.
        # Corresponds to the JSON property `endTime`
        # @return [String]
        attr_accessor :end_time
      
        # The field resource that this operation is acting on. For example: `projects/`
        # project_id`/databases/`database_id`/collectionGroups/`collection_id`/fields/`
        # field_path``
        # Corresponds to the JSON property `field`
        # @return [String]
        attr_accessor :field
      
        # A list of IndexConfigDelta, which describe the intent of this operation.
        # Corresponds to the JSON property `indexConfigDeltas`
        # @return [Array<Google::Apis::FirestoreV1::GoogleFirestoreAdminV1IndexConfigDelta>]
        attr_accessor :index_config_deltas
      
        # Describes the progress of the operation. Unit of work is generic and must be
        # interpreted based on where Progress is used.
        # Corresponds to the JSON property `progressBytes`
        # @return [Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Progress]
        attr_accessor :progress_bytes
      
        # Describes the progress of the operation. Unit of work is generic and must be
        # interpreted based on where Progress is used.
        # Corresponds to the JSON property `progressDocuments`
        # @return [Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Progress]
        attr_accessor :progress_documents
      
        # The time this operation started.
        # Corresponds to the JSON property `startTime`
        # @return [String]
        attr_accessor :start_time
      
        # The state of the operation.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @end_time = args[:end_time] if args.key?(:end_time)
          @field = args[:field] if args.key?(:field)
          @index_config_deltas = args[:index_config_deltas] if args.key?(:index_config_deltas)
          @progress_bytes = args[:progress_bytes] if args.key?(:progress_bytes)
          @progress_documents = args[:progress_documents] if args.key?(:progress_documents)
          @start_time = args[:start_time] if args.key?(:start_time)
          @state = args[:state] if args.key?(:state)
        end
      end
      
      # Metadata for google.longrunning.Operation results from FirestoreAdmin.
      # ImportDocuments.
      class GoogleFirestoreAdminV1ImportDocumentsMetadata
        include Google::Apis::Core::Hashable
      
        # Which collection ids are being imported.
        # Corresponds to the JSON property `collectionIds`
        # @return [Array<String>]
        attr_accessor :collection_ids
      
        # The time this operation completed. Will be unset if operation still in
        # progress.
        # Corresponds to the JSON property `endTime`
        # @return [String]
        attr_accessor :end_time
      
        # The location of the documents being imported.
        # Corresponds to the JSON property `inputUriPrefix`
        # @return [String]
        attr_accessor :input_uri_prefix
      
        # The state of the import operation.
        # Corresponds to the JSON property `operationState`
        # @return [String]
        attr_accessor :operation_state
      
        # Describes the progress of the operation. Unit of work is generic and must be
        # interpreted based on where Progress is used.
        # Corresponds to the JSON property `progressBytes`
        # @return [Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Progress]
        attr_accessor :progress_bytes
      
        # Describes the progress of the operation. Unit of work is generic and must be
        # interpreted based on where Progress is used.
        # Corresponds to the JSON property `progressDocuments`
        # @return [Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Progress]
        attr_accessor :progress_documents
      
        # The time this operation started.
        # Corresponds to the JSON property `startTime`
        # @return [String]
        attr_accessor :start_time
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @collection_ids = args[:collection_ids] if args.key?(:collection_ids)
          @end_time = args[:end_time] if args.key?(:end_time)
          @input_uri_prefix = args[:input_uri_prefix] if args.key?(:input_uri_prefix)
          @operation_state = args[:operation_state] if args.key?(:operation_state)
          @progress_bytes = args[:progress_bytes] if args.key?(:progress_bytes)
          @progress_documents = args[:progress_documents] if args.key?(:progress_documents)
          @start_time = args[:start_time] if args.key?(:start_time)
        end
      end
      
      # The request for FirestoreAdmin.ImportDocuments.
      class GoogleFirestoreAdminV1ImportDocumentsRequest
        include Google::Apis::Core::Hashable
      
        # Which collection ids to import. Unspecified means all collections included in
        # the import.
        # Corresponds to the JSON property `collectionIds`
        # @return [Array<String>]
        attr_accessor :collection_ids
      
        # Location of the exported files. This must match the output_uri_prefix of an
        # ExportDocumentsResponse from an export that has completed successfully. See:
        # google.firestore.admin.v1.ExportDocumentsResponse.output_uri_prefix.
        # Corresponds to the JSON property `inputUriPrefix`
        # @return [String]
        attr_accessor :input_uri_prefix
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @collection_ids = args[:collection_ids] if args.key?(:collection_ids)
          @input_uri_prefix = args[:input_uri_prefix] if args.key?(:input_uri_prefix)
        end
      end
      
      # Cloud Firestore indexes enable simple and complex queries against documents in
      # a database.
      class GoogleFirestoreAdminV1Index
        include Google::Apis::Core::Hashable
      
        # The fields supported by this index. For composite indexes, this is always 2 or
        # more fields. The last field entry is always for the field path `__name__`. If,
        # on creation, `__name__` was not specified as the last field, it will be added
        # automatically with the same direction as that of the last field defined. If
        # the final field in a composite index is not directional, the `__name__` will
        # be ordered ASCENDING (unless explicitly specified). For single field indexes,
        # this will always be exactly one entry with a field path equal to the field
        # path of the associated field.
        # Corresponds to the JSON property `fields`
        # @return [Array<Google::Apis::FirestoreV1::GoogleFirestoreAdminV1IndexField>]
        attr_accessor :fields
      
        # Output only. A server defined name for this index. The form of this name for
        # composite indexes will be: `projects/`project_id`/databases/`database_id`/
        # collectionGroups/`collection_id`/indexes/`composite_index_id`` For single
        # field indexes, this field will be empty.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # Indexes with a collection query scope specified allow queries against a
        # collection that is the child of a specific document, specified at query time,
        # and that has the same collection id. Indexes with a collection group query
        # scope specified allow queries against all collections descended from a
        # specific document, specified at query time, and that have the same collection
        # id as this index.
        # Corresponds to the JSON property `queryScope`
        # @return [String]
        attr_accessor :query_scope
      
        # Output only. The serving state of the index.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fields = args[:fields] if args.key?(:fields)
          @name = args[:name] if args.key?(:name)
          @query_scope = args[:query_scope] if args.key?(:query_scope)
          @state = args[:state] if args.key?(:state)
        end
      end
      
      # The index configuration for this field.
      class GoogleFirestoreAdminV1IndexConfig
        include Google::Apis::Core::Hashable
      
        # Output only. Specifies the resource name of the `Field` from which this field'
        # s index configuration is set (when `uses_ancestor_config` is true), or from
        # which it *would* be set if this field had no index configuration (when `
        # uses_ancestor_config` is false).
        # Corresponds to the JSON property `ancestorField`
        # @return [String]
        attr_accessor :ancestor_field
      
        # The indexes supported for this field.
        # Corresponds to the JSON property `indexes`
        # @return [Array<Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Index>]
        attr_accessor :indexes
      
        # Output only When true, the `Field`'s index configuration is in the process of
        # being reverted. Once complete, the index config will transition to the same
        # state as the field specified by `ancestor_field`, at which point `
        # uses_ancestor_config` will be `true` and `reverting` will be `false`.
        # Corresponds to the JSON property `reverting`
        # @return [Boolean]
        attr_accessor :reverting
        alias_method :reverting?, :reverting
      
        # Output only. When true, the `Field`'s index configuration is set from the
        # configuration specified by the `ancestor_field`. When false, the `Field`'s
        # index configuration is defined explicitly.
        # Corresponds to the JSON property `usesAncestorConfig`
        # @return [Boolean]
        attr_accessor :uses_ancestor_config
        alias_method :uses_ancestor_config?, :uses_ancestor_config
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @ancestor_field = args[:ancestor_field] if args.key?(:ancestor_field)
          @indexes = args[:indexes] if args.key?(:indexes)
          @reverting = args[:reverting] if args.key?(:reverting)
          @uses_ancestor_config = args[:uses_ancestor_config] if args.key?(:uses_ancestor_config)
        end
      end
      
      # Information about an index configuration change.
      class GoogleFirestoreAdminV1IndexConfigDelta
        include Google::Apis::Core::Hashable
      
        # Specifies how the index is changing.
        # Corresponds to the JSON property `changeType`
        # @return [String]
        attr_accessor :change_type
      
        # Cloud Firestore indexes enable simple and complex queries against documents in
        # a database.
        # Corresponds to the JSON property `index`
        # @return [Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Index]
        attr_accessor :index
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @change_type = args[:change_type] if args.key?(:change_type)
          @index = args[:index] if args.key?(:index)
        end
      end
      
      # A field in an index. The field_path describes which field is indexed, the
      # value_mode describes how the field value is indexed.
      class GoogleFirestoreAdminV1IndexField
        include Google::Apis::Core::Hashable
      
        # Indicates that this field supports operations on `array_value`s.
        # Corresponds to the JSON property `arrayConfig`
        # @return [String]
        attr_accessor :array_config
      
        # Can be __name__. For single field indexes, this must match the name of the
        # field or may be omitted.
        # Corresponds to the JSON property `fieldPath`
        # @return [String]
        attr_accessor :field_path
      
        # Indicates that this field supports ordering by the specified order or
        # comparing using =, !=, <, <=, >, >=.
        # Corresponds to the JSON property `order`
        # @return [String]
        attr_accessor :order
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @array_config = args[:array_config] if args.key?(:array_config)
          @field_path = args[:field_path] if args.key?(:field_path)
          @order = args[:order] if args.key?(:order)
        end
      end
      
      # Metadata for google.longrunning.Operation results from FirestoreAdmin.
      # CreateIndex.
      class GoogleFirestoreAdminV1IndexOperationMetadata
        include Google::Apis::Core::Hashable
      
        # The time this operation completed. Will be unset if operation still in
        # progress.
        # Corresponds to the JSON property `endTime`
        # @return [String]
        attr_accessor :end_time
      
        # The index resource that this operation is acting on. For example: `projects/`
        # project_id`/databases/`database_id`/collectionGroups/`collection_id`/indexes/`
        # index_id``
        # Corresponds to the JSON property `index`
        # @return [String]
        attr_accessor :index
      
        # Describes the progress of the operation. Unit of work is generic and must be
        # interpreted based on where Progress is used.
        # Corresponds to the JSON property `progressBytes`
        # @return [Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Progress]
        attr_accessor :progress_bytes
      
        # Describes the progress of the operation. Unit of work is generic and must be
        # interpreted based on where Progress is used.
        # Corresponds to the JSON property `progressDocuments`
        # @return [Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Progress]
        attr_accessor :progress_documents
      
        # The time this operation started.
        # Corresponds to the JSON property `startTime`
        # @return [String]
        attr_accessor :start_time
      
        # The state of the operation.
        # Corresponds to the JSON property `state`
        # @return [String]
        attr_accessor :state
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @end_time = args[:end_time] if args.key?(:end_time)
          @index = args[:index] if args.key?(:index)
          @progress_bytes = args[:progress_bytes] if args.key?(:progress_bytes)
          @progress_documents = args[:progress_documents] if args.key?(:progress_documents)
          @start_time = args[:start_time] if args.key?(:start_time)
          @state = args[:state] if args.key?(:state)
        end
      end
      
      # The list of databases for a project.
      class GoogleFirestoreAdminV1ListDatabasesResponse
        include Google::Apis::Core::Hashable
      
        # The databases in the project.
        # Corresponds to the JSON property `databases`
        # @return [Array<Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Database>]
        attr_accessor :databases
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @databases = args[:databases] if args.key?(:databases)
        end
      end
      
      # The response for FirestoreAdmin.ListFields.
      class GoogleFirestoreAdminV1ListFieldsResponse
        include Google::Apis::Core::Hashable
      
        # The requested fields.
        # Corresponds to the JSON property `fields`
        # @return [Array<Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Field>]
        attr_accessor :fields
      
        # A page token that may be used to request another page of results. If blank,
        # this is the last page.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fields = args[:fields] if args.key?(:fields)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
        end
      end
      
      # The response for FirestoreAdmin.ListIndexes.
      class GoogleFirestoreAdminV1ListIndexesResponse
        include Google::Apis::Core::Hashable
      
        # The requested indexes.
        # Corresponds to the JSON property `indexes`
        # @return [Array<Google::Apis::FirestoreV1::GoogleFirestoreAdminV1Index>]
        attr_accessor :indexes
      
        # A page token that may be used to request another page of results. If blank,
        # this is the last page.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @indexes = args[:indexes] if args.key?(:indexes)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
        end
      end
      
      # The metadata message for google.cloud.location.Location.metadata.
      class GoogleFirestoreAdminV1LocationMetadata
        include Google::Apis::Core::Hashable
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
        end
      end
      
      # Describes the progress of the operation. Unit of work is generic and must be
      # interpreted based on where Progress is used.
      class GoogleFirestoreAdminV1Progress
        include Google::Apis::Core::Hashable
      
        # The amount of work completed.
        # Corresponds to the JSON property `completedWork`
        # @return [Fixnum]
        attr_accessor :completed_work
      
        # The amount of work estimated.
        # Corresponds to the JSON property `estimatedWork`
        # @return [Fixnum]
        attr_accessor :estimated_work
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @completed_work = args[:completed_work] if args.key?(:completed_work)
          @estimated_work = args[:estimated_work] if args.key?(:estimated_work)
        end
      end
      
      # The request message for Operations.CancelOperation.
      class GoogleLongrunningCancelOperationRequest
        include Google::Apis::Core::Hashable
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
        end
      end
      
      # The response message for Operations.ListOperations.
      class GoogleLongrunningListOperationsResponse
        include Google::Apis::Core::Hashable
      
        # The standard List next-page token.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # A list of operations that matches the specified filter in the request.
        # Corresponds to the JSON property `operations`
        # @return [Array<Google::Apis::FirestoreV1::GoogleLongrunningOperation>]
        attr_accessor :operations
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @operations = args[:operations] if args.key?(:operations)
        end
      end
      
      # This resource represents a long-running operation that is the result of a
      # network API call.
      class GoogleLongrunningOperation
        include Google::Apis::Core::Hashable
      
        # If the value is `false`, it means the operation is still in progress. If `true`
        # , the operation is completed, and either `error` or `response` is available.
        # Corresponds to the JSON property `done`
        # @return [Boolean]
        attr_accessor :done
        alias_method :done?, :done
      
        # The `Status` type defines a logical error model that is suitable for different
        # programming environments, including REST APIs and RPC APIs. It is used by [
        # gRPC](https://github.com/grpc). Each `Status` message contains three pieces of
        # data: error code, error message, and error details. You can find out more
        # about this error model and how to work with it in the [API Design Guide](https:
        # //cloud.google.com/apis/design/errors).
        # Corresponds to the JSON property `error`
        # @return [Google::Apis::FirestoreV1::Status]
        attr_accessor :error
      
        # Service-specific metadata associated with the operation. It typically contains
        # progress information and common metadata such as create time. Some services
        # might not provide such metadata. Any method that returns a long-running
        # operation should document the metadata type, if any.
        # Corresponds to the JSON property `metadata`
        # @return [Hash<String,Object>]
        attr_accessor :metadata
      
        # The server-assigned name, which is only unique within the same service that
        # originally returns it. If you use the default HTTP mapping, the `name` should
        # be a resource name ending with `operations/`unique_id``.
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        # The normal response of the operation in case of success. If the original
        # method returns no data on success, such as `Delete`, the response is `google.
        # protobuf.Empty`. If the original method is standard `Get`/`Create`/`Update`,
        # the response should be the resource. For other methods, the response should
        # have the type `XxxResponse`, where `Xxx` is the original method name. For
        # example, if the original method name is `TakeSnapshot()`, the inferred
        # response type is `TakeSnapshotResponse`.
        # Corresponds to the JSON property `response`
        # @return [Hash<String,Object>]
        attr_accessor :response
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @done = args[:done] if args.key?(:done)
          @error = args[:error] if args.key?(:error)
          @metadata = args[:metadata] if args.key?(:metadata)
          @name = args[:name] if args.key?(:name)
          @response = args[:response] if args.key?(:response)
        end
      end
      
      # An object that represents a latitude/longitude pair. This is expressed as a
      # pair of doubles to represent degrees latitude and degrees longitude. Unless
      # specified otherwise, this object must conform to the WGS84 standard. Values
      # must be within normalized ranges.
      class LatLng
        include Google::Apis::Core::Hashable
      
        # The latitude in degrees. It must be in the range [-90.0, +90.0].
        # Corresponds to the JSON property `latitude`
        # @return [Float]
        attr_accessor :latitude
      
        # The longitude in degrees. It must be in the range [-180.0, +180.0].
        # Corresponds to the JSON property `longitude`
        # @return [Float]
        attr_accessor :longitude
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @latitude = args[:latitude] if args.key?(:latitude)
          @longitude = args[:longitude] if args.key?(:longitude)
        end
      end
      
      # The request for Firestore.ListCollectionIds.
      class ListCollectionIdsRequest
        include Google::Apis::Core::Hashable
      
        # The maximum number of results to return.
        # Corresponds to the JSON property `pageSize`
        # @return [Fixnum]
        attr_accessor :page_size
      
        # A page token. Must be a value from ListCollectionIdsResponse.
        # Corresponds to the JSON property `pageToken`
        # @return [String]
        attr_accessor :page_token
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @page_size = args[:page_size] if args.key?(:page_size)
          @page_token = args[:page_token] if args.key?(:page_token)
        end
      end
      
      # The response from Firestore.ListCollectionIds.
      class ListCollectionIdsResponse
        include Google::Apis::Core::Hashable
      
        # The collection ids.
        # Corresponds to the JSON property `collectionIds`
        # @return [Array<String>]
        attr_accessor :collection_ids
      
        # A page token that may be used to continue the list.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @collection_ids = args[:collection_ids] if args.key?(:collection_ids)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
        end
      end
      
      # The response for Firestore.ListDocuments.
      class ListDocumentsResponse
        include Google::Apis::Core::Hashable
      
        # The Documents found.
        # Corresponds to the JSON property `documents`
        # @return [Array<Google::Apis::FirestoreV1::Document>]
        attr_accessor :documents
      
        # The next page token.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @documents = args[:documents] if args.key?(:documents)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
        end
      end
      
      # The response message for Locations.ListLocations.
      class ListLocationsResponse
        include Google::Apis::Core::Hashable
      
        # A list of locations that matches the specified filter in the request.
        # Corresponds to the JSON property `locations`
        # @return [Array<Google::Apis::FirestoreV1::Location>]
        attr_accessor :locations
      
        # The standard List next-page token.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @locations = args[:locations] if args.key?(:locations)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
        end
      end
      
      # A request for Firestore.Listen
      class ListenRequest
        include Google::Apis::Core::Hashable
      
        # A specification of a set of documents to listen to.
        # Corresponds to the JSON property `addTarget`
        # @return [Google::Apis::FirestoreV1::Target]
        attr_accessor :add_target
      
        # Labels associated with this target change.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # The ID of a target to remove from this stream.
        # Corresponds to the JSON property `removeTarget`
        # @return [Fixnum]
        attr_accessor :remove_target
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @add_target = args[:add_target] if args.key?(:add_target)
          @labels = args[:labels] if args.key?(:labels)
          @remove_target = args[:remove_target] if args.key?(:remove_target)
        end
      end
      
      # The response for Firestore.Listen.
      class ListenResponse
        include Google::Apis::Core::Hashable
      
        # A Document has changed. May be the result of multiple writes, including
        # deletes, that ultimately resulted in a new value for the Document. Multiple
        # DocumentChange messages may be returned for the same logical change, if
        # multiple targets are affected.
        # Corresponds to the JSON property `documentChange`
        # @return [Google::Apis::FirestoreV1::DocumentChange]
        attr_accessor :document_change
      
        # A Document has been deleted. May be the result of multiple writes, including
        # updates, the last of which deleted the Document. Multiple DocumentDelete
        # messages may be returned for the same logical delete, if multiple targets are
        # affected.
        # Corresponds to the JSON property `documentDelete`
        # @return [Google::Apis::FirestoreV1::DocumentDelete]
        attr_accessor :document_delete
      
        # A Document has been removed from the view of the targets. Sent if the document
        # is no longer relevant to a target and is out of view. Can be sent instead of a
        # DocumentDelete or a DocumentChange if the server can not send the new value of
        # the document. Multiple DocumentRemove messages may be returned for the same
        # logical write or delete, if multiple targets are affected.
        # Corresponds to the JSON property `documentRemove`
        # @return [Google::Apis::FirestoreV1::DocumentRemove]
        attr_accessor :document_remove
      
        # A digest of all the documents that match a given target.
        # Corresponds to the JSON property `filter`
        # @return [Google::Apis::FirestoreV1::ExistenceFilter]
        attr_accessor :filter
      
        # Targets being watched have changed.
        # Corresponds to the JSON property `targetChange`
        # @return [Google::Apis::FirestoreV1::TargetChange]
        attr_accessor :target_change
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @document_change = args[:document_change] if args.key?(:document_change)
          @document_delete = args[:document_delete] if args.key?(:document_delete)
          @document_remove = args[:document_remove] if args.key?(:document_remove)
          @filter = args[:filter] if args.key?(:filter)
          @target_change = args[:target_change] if args.key?(:target_change)
        end
      end
      
      # A resource that represents Google Cloud Platform location.
      class Location
        include Google::Apis::Core::Hashable
      
        # The friendly name for this location, typically a nearby city name. For example,
        # "Tokyo".
        # Corresponds to the JSON property `displayName`
        # @return [String]
        attr_accessor :display_name
      
        # Cross-service attributes for the location. For example `"cloud.googleapis.com/
        # region": "us-east1"`
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # The canonical id for this location. For example: `"us-east1"`.
        # Corresponds to the JSON property `locationId`
        # @return [String]
        attr_accessor :location_id
      
        # Service-specific metadata. For example the available capacity at the given
        # location.
        # Corresponds to the JSON property `metadata`
        # @return [Hash<String,Object>]
        attr_accessor :metadata
      
        # Resource name for the location, which may vary between implementations. For
        # example: `"projects/example-project/locations/us-east1"`
        # Corresponds to the JSON property `name`
        # @return [String]
        attr_accessor :name
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @display_name = args[:display_name] if args.key?(:display_name)
          @labels = args[:labels] if args.key?(:labels)
          @location_id = args[:location_id] if args.key?(:location_id)
          @metadata = args[:metadata] if args.key?(:metadata)
          @name = args[:name] if args.key?(:name)
        end
      end
      
      # A map value.
      class MapValue
        include Google::Apis::Core::Hashable
      
        # The map's fields. The map keys represent field names. Field names matching the
        # regular expression `__.*__` are reserved. Reserved field names are forbidden
        # except in certain documented contexts. The map keys, represented as UTF-8,
        # must not exceed 1,500 bytes and cannot be empty.
        # Corresponds to the JSON property `fields`
        # @return [Hash<String,Google::Apis::FirestoreV1::Value>]
        attr_accessor :fields
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fields = args[:fields] if args.key?(:fields)
        end
      end
      
      # An order on a field.
      class Order
        include Google::Apis::Core::Hashable
      
        # The direction to order by. Defaults to `ASCENDING`.
        # Corresponds to the JSON property `direction`
        # @return [String]
        attr_accessor :direction
      
        # A reference to a field, such as `max(messages.time) as max_time`.
        # Corresponds to the JSON property `field`
        # @return [Google::Apis::FirestoreV1::FieldReference]
        attr_accessor :field
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @direction = args[:direction] if args.key?(:direction)
          @field = args[:field] if args.key?(:field)
        end
      end
      
      # The request for Firestore.PartitionQuery.
      class PartitionQueryRequest
        include Google::Apis::Core::Hashable
      
        # The maximum number of partitions to return in this call, subject to `
        # partition_count`. For example, if `partition_count` = 10 and `page_size` = 8,
        # the first call to PartitionQuery will return up to 8 partitions and a `
        # next_page_token` if more results exist. A second call to PartitionQuery will
        # return up to 2 partitions, to complete the total of 10 specified in `
        # partition_count`.
        # Corresponds to the JSON property `pageSize`
        # @return [Fixnum]
        attr_accessor :page_size
      
        # The `next_page_token` value returned from a previous call to PartitionQuery
        # that may be used to get an additional set of results. There are no ordering
        # guarantees between sets of results. Thus, using multiple sets of results will
        # require merging the different result sets. For example, two subsequent calls
        # using a page_token may return: * cursor B, cursor M, cursor Q * cursor A,
        # cursor U, cursor W To obtain a complete result set ordered with respect to the
        # results of the query supplied to PartitionQuery, the results sets should be
        # merged: cursor A, cursor B, cursor M, cursor Q, cursor U, cursor W
        # Corresponds to the JSON property `pageToken`
        # @return [String]
        attr_accessor :page_token
      
        # The desired maximum number of partition points. The partitions may be returned
        # across multiple pages of results. The number must be positive. The actual
        # number of partitions returned may be fewer. For example, this may be set to
        # one fewer than the number of parallel queries to be run, or in running a data
        # pipeline job, one fewer than the number of workers or compute instances
        # available.
        # Corresponds to the JSON property `partitionCount`
        # @return [Fixnum]
        attr_accessor :partition_count
      
        # A Firestore query.
        # Corresponds to the JSON property `structuredQuery`
        # @return [Google::Apis::FirestoreV1::StructuredQuery]
        attr_accessor :structured_query
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @page_size = args[:page_size] if args.key?(:page_size)
          @page_token = args[:page_token] if args.key?(:page_token)
          @partition_count = args[:partition_count] if args.key?(:partition_count)
          @structured_query = args[:structured_query] if args.key?(:structured_query)
        end
      end
      
      # The response for Firestore.PartitionQuery.
      class PartitionQueryResponse
        include Google::Apis::Core::Hashable
      
        # A page token that may be used to request an additional set of results, up to
        # the number specified by `partition_count` in the PartitionQuery request. If
        # blank, there are no more results.
        # Corresponds to the JSON property `nextPageToken`
        # @return [String]
        attr_accessor :next_page_token
      
        # Partition results. Each partition is a split point that can be used by
        # RunQuery as a starting or end point for the query results. The RunQuery
        # requests must be made with the same query supplied to this PartitionQuery
        # request. The partition cursors will be ordered according to same ordering as
        # the results of the query supplied to PartitionQuery. For example, if a
        # PartitionQuery request returns partition cursors A and B, running the
        # following three queries will return the entire result set of the original
        # query: * query, end_at A * query, start_at A, end_at B * query, start_at B An
        # empty result may indicate that the query has too few results to be partitioned.
        # Corresponds to the JSON property `partitions`
        # @return [Array<Google::Apis::FirestoreV1::Cursor>]
        attr_accessor :partitions
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
          @partitions = args[:partitions] if args.key?(:partitions)
        end
      end
      
      # A precondition on a document, used for conditional operations.
      class Precondition
        include Google::Apis::Core::Hashable
      
        # When set to `true`, the target document must exist. When set to `false`, the
        # target document must not exist.
        # Corresponds to the JSON property `exists`
        # @return [Boolean]
        attr_accessor :exists
        alias_method :exists?, :exists
      
        # When set, the target document must exist and have been last updated at that
        # time.
        # Corresponds to the JSON property `updateTime`
        # @return [String]
        attr_accessor :update_time
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @exists = args[:exists] if args.key?(:exists)
          @update_time = args[:update_time] if args.key?(:update_time)
        end
      end
      
      # The projection of document's fields to return.
      class Projection
        include Google::Apis::Core::Hashable
      
        # The fields to return. If empty, all fields are returned. To only return the
        # name of the document, use `['__name__']`.
        # Corresponds to the JSON property `fields`
        # @return [Array<Google::Apis::FirestoreV1::FieldReference>]
        attr_accessor :fields
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @fields = args[:fields] if args.key?(:fields)
        end
      end
      
      # A target specified by a query.
      class QueryTarget
        include Google::Apis::Core::Hashable
      
        # The parent resource name. In the format: `projects/`project_id`/databases/`
        # database_id`/documents` or `projects/`project_id`/databases/`database_id`/
        # documents/`document_path``. For example: `projects/my-project/databases/my-
        # database/documents` or `projects/my-project/databases/my-database/documents/
        # chatrooms/my-chatroom`
        # Corresponds to the JSON property `parent`
        # @return [String]
        attr_accessor :parent
      
        # A Firestore query.
        # Corresponds to the JSON property `structuredQuery`
        # @return [Google::Apis::FirestoreV1::StructuredQuery]
        attr_accessor :structured_query
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @parent = args[:parent] if args.key?(:parent)
          @structured_query = args[:structured_query] if args.key?(:structured_query)
        end
      end
      
      # Options for a transaction that can only be used to read documents.
      class ReadOnly
        include Google::Apis::Core::Hashable
      
        # Reads documents at the given time. This may not be older than 60 seconds.
        # Corresponds to the JSON property `readTime`
        # @return [String]
        attr_accessor :read_time
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @read_time = args[:read_time] if args.key?(:read_time)
        end
      end
      
      # Options for a transaction that can be used to read and write documents.
      class ReadWrite
        include Google::Apis::Core::Hashable
      
        # An optional transaction to retry.
        # Corresponds to the JSON property `retryTransaction`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :retry_transaction
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @retry_transaction = args[:retry_transaction] if args.key?(:retry_transaction)
        end
      end
      
      # The request for Firestore.Rollback.
      class RollbackRequest
        include Google::Apis::Core::Hashable
      
        # Required. The transaction to roll back.
        # Corresponds to the JSON property `transaction`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :transaction
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @transaction = args[:transaction] if args.key?(:transaction)
        end
      end
      
      # The request for Firestore.RunQuery.
      class RunQueryRequest
        include Google::Apis::Core::Hashable
      
        # Options for creating a new transaction.
        # Corresponds to the JSON property `newTransaction`
        # @return [Google::Apis::FirestoreV1::TransactionOptions]
        attr_accessor :new_transaction
      
        # Reads documents as they were at the given time. This may not be older than 270
        # seconds.
        # Corresponds to the JSON property `readTime`
        # @return [String]
        attr_accessor :read_time
      
        # A Firestore query.
        # Corresponds to the JSON property `structuredQuery`
        # @return [Google::Apis::FirestoreV1::StructuredQuery]
        attr_accessor :structured_query
      
        # Reads documents in a transaction.
        # Corresponds to the JSON property `transaction`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :transaction
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @new_transaction = args[:new_transaction] if args.key?(:new_transaction)
          @read_time = args[:read_time] if args.key?(:read_time)
          @structured_query = args[:structured_query] if args.key?(:structured_query)
          @transaction = args[:transaction] if args.key?(:transaction)
        end
      end
      
      # The response for Firestore.RunQuery.
      class RunQueryResponse
        include Google::Apis::Core::Hashable
      
        # A Firestore document. Must not exceed 1 MiB - 4 bytes.
        # Corresponds to the JSON property `document`
        # @return [Google::Apis::FirestoreV1::Document]
        attr_accessor :document
      
        # The time at which the document was read. This may be monotonically increasing;
        # in this case, the previous documents in the result stream are guaranteed not
        # to have changed between their `read_time` and this one. If the query returns
        # no results, a response with `read_time` and no `document` will be sent, and
        # this represents the time at which the query was run.
        # Corresponds to the JSON property `readTime`
        # @return [String]
        attr_accessor :read_time
      
        # The number of results that have been skipped due to an offset between the last
        # response and the current response.
        # Corresponds to the JSON property `skippedResults`
        # @return [Fixnum]
        attr_accessor :skipped_results
      
        # The transaction that was started as part of this request. Can only be set in
        # the first response, and only if RunQueryRequest.new_transaction was set in the
        # request. If set, no other fields will be set in this response.
        # Corresponds to the JSON property `transaction`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :transaction
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @document = args[:document] if args.key?(:document)
          @read_time = args[:read_time] if args.key?(:read_time)
          @skipped_results = args[:skipped_results] if args.key?(:skipped_results)
          @transaction = args[:transaction] if args.key?(:transaction)
        end
      end
      
      # The `Status` type defines a logical error model that is suitable for different
      # programming environments, including REST APIs and RPC APIs. It is used by [
      # gRPC](https://github.com/grpc). Each `Status` message contains three pieces of
      # data: error code, error message, and error details. You can find out more
      # about this error model and how to work with it in the [API Design Guide](https:
      # //cloud.google.com/apis/design/errors).
      class Status
        include Google::Apis::Core::Hashable
      
        # The status code, which should be an enum value of google.rpc.Code.
        # Corresponds to the JSON property `code`
        # @return [Fixnum]
        attr_accessor :code
      
        # A list of messages that carry the error details. There is a common set of
        # message types for APIs to use.
        # Corresponds to the JSON property `details`
        # @return [Array<Hash<String,Object>>]
        attr_accessor :details
      
        # A developer-facing error message, which should be in English. Any user-facing
        # error message should be localized and sent in the google.rpc.Status.details
        # field, or localized by the client.
        # Corresponds to the JSON property `message`
        # @return [String]
        attr_accessor :message
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @code = args[:code] if args.key?(:code)
          @details = args[:details] if args.key?(:details)
          @message = args[:message] if args.key?(:message)
        end
      end
      
      # A Firestore query.
      class StructuredQuery
        include Google::Apis::Core::Hashable
      
        # A position in a query result set.
        # Corresponds to the JSON property `endAt`
        # @return [Google::Apis::FirestoreV1::Cursor]
        attr_accessor :end_at
      
        # The collections to query.
        # Corresponds to the JSON property `from`
        # @return [Array<Google::Apis::FirestoreV1::CollectionSelector>]
        attr_accessor :from
      
        # The maximum number of results to return. Applies after all other constraints.
        # Must be >= 0 if specified.
        # Corresponds to the JSON property `limit`
        # @return [Fixnum]
        attr_accessor :limit
      
        # The number of results to skip. Applies before limit, but after all other
        # constraints. Must be >= 0 if specified.
        # Corresponds to the JSON property `offset`
        # @return [Fixnum]
        attr_accessor :offset
      
        # The order to apply to the query results. Firestore guarantees a stable
        # ordering through the following rules: * Any field required to appear in `
        # order_by`, that is not already specified in `order_by`, is appended to the
        # order in field name order by default. * If an order on `__name__` is not
        # specified, it is appended by default. Fields are appended with the same sort
        # direction as the last order specified, or 'ASCENDING' if no order was
        # specified. For example: * `SELECT * FROM Foo ORDER BY A` becomes `SELECT *
        # FROM Foo ORDER BY A, __name__` * `SELECT * FROM Foo ORDER BY A DESC` becomes `
        # SELECT * FROM Foo ORDER BY A DESC, __name__ DESC` * `SELECT * FROM Foo WHERE A
        # > 1` becomes `SELECT * FROM Foo WHERE A > 1 ORDER BY A, __name__`
        # Corresponds to the JSON property `orderBy`
        # @return [Array<Google::Apis::FirestoreV1::Order>]
        attr_accessor :order_by
      
        # The projection of document's fields to return.
        # Corresponds to the JSON property `select`
        # @return [Google::Apis::FirestoreV1::Projection]
        attr_accessor :select
      
        # A position in a query result set.
        # Corresponds to the JSON property `startAt`
        # @return [Google::Apis::FirestoreV1::Cursor]
        attr_accessor :start_at
      
        # A filter.
        # Corresponds to the JSON property `where`
        # @return [Google::Apis::FirestoreV1::Filter]
        attr_accessor :where
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @end_at = args[:end_at] if args.key?(:end_at)
          @from = args[:from] if args.key?(:from)
          @limit = args[:limit] if args.key?(:limit)
          @offset = args[:offset] if args.key?(:offset)
          @order_by = args[:order_by] if args.key?(:order_by)
          @select = args[:select] if args.key?(:select)
          @start_at = args[:start_at] if args.key?(:start_at)
          @where = args[:where] if args.key?(:where)
        end
      end
      
      # A specification of a set of documents to listen to.
      class Target
        include Google::Apis::Core::Hashable
      
        # A target specified by a set of documents names.
        # Corresponds to the JSON property `documents`
        # @return [Google::Apis::FirestoreV1::DocumentsTarget]
        attr_accessor :documents
      
        # If the target should be removed once it is current and consistent.
        # Corresponds to the JSON property `once`
        # @return [Boolean]
        attr_accessor :once
        alias_method :once?, :once
      
        # A target specified by a query.
        # Corresponds to the JSON property `query`
        # @return [Google::Apis::FirestoreV1::QueryTarget]
        attr_accessor :query
      
        # Start listening after a specific `read_time`. The client must know the state
        # of matching documents at this time.
        # Corresponds to the JSON property `readTime`
        # @return [String]
        attr_accessor :read_time
      
        # A resume token from a prior TargetChange for an identical target. Using a
        # resume token with a different target is unsupported and may fail.
        # Corresponds to the JSON property `resumeToken`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :resume_token
      
        # The target ID that identifies the target on the stream. Must be a positive
        # number and non-zero.
        # Corresponds to the JSON property `targetId`
        # @return [Fixnum]
        attr_accessor :target_id
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @documents = args[:documents] if args.key?(:documents)
          @once = args[:once] if args.key?(:once)
          @query = args[:query] if args.key?(:query)
          @read_time = args[:read_time] if args.key?(:read_time)
          @resume_token = args[:resume_token] if args.key?(:resume_token)
          @target_id = args[:target_id] if args.key?(:target_id)
        end
      end
      
      # Targets being watched have changed.
      class TargetChange
        include Google::Apis::Core::Hashable
      
        # The `Status` type defines a logical error model that is suitable for different
        # programming environments, including REST APIs and RPC APIs. It is used by [
        # gRPC](https://github.com/grpc). Each `Status` message contains three pieces of
        # data: error code, error message, and error details. You can find out more
        # about this error model and how to work with it in the [API Design Guide](https:
        # //cloud.google.com/apis/design/errors).
        # Corresponds to the JSON property `cause`
        # @return [Google::Apis::FirestoreV1::Status]
        attr_accessor :cause
      
        # The consistent `read_time` for the given `target_ids` (omitted when the
        # target_ids are not at a consistent snapshot). The stream is guaranteed to send
        # a `read_time` with `target_ids` empty whenever the entire stream reaches a new
        # consistent snapshot. ADD, CURRENT, and RESET messages are guaranteed to (
        # eventually) result in a new consistent snapshot (while NO_CHANGE and REMOVE
        # messages are not). For a given stream, `read_time` is guaranteed to be
        # monotonically increasing.
        # Corresponds to the JSON property `readTime`
        # @return [String]
        attr_accessor :read_time
      
        # A token that can be used to resume the stream for the given `target_ids`, or
        # all targets if `target_ids` is empty. Not set on every target change.
        # Corresponds to the JSON property `resumeToken`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :resume_token
      
        # The type of change that occurred.
        # Corresponds to the JSON property `targetChangeType`
        # @return [String]
        attr_accessor :target_change_type
      
        # The target IDs of targets that have changed. If empty, the change applies to
        # all targets. The order of the target IDs is not defined.
        # Corresponds to the JSON property `targetIds`
        # @return [Array<Fixnum>]
        attr_accessor :target_ids
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @cause = args[:cause] if args.key?(:cause)
          @read_time = args[:read_time] if args.key?(:read_time)
          @resume_token = args[:resume_token] if args.key?(:resume_token)
          @target_change_type = args[:target_change_type] if args.key?(:target_change_type)
          @target_ids = args[:target_ids] if args.key?(:target_ids)
        end
      end
      
      # Options for creating a new transaction.
      class TransactionOptions
        include Google::Apis::Core::Hashable
      
        # Options for a transaction that can only be used to read documents.
        # Corresponds to the JSON property `readOnly`
        # @return [Google::Apis::FirestoreV1::ReadOnly]
        attr_accessor :read_only
      
        # Options for a transaction that can be used to read and write documents.
        # Corresponds to the JSON property `readWrite`
        # @return [Google::Apis::FirestoreV1::ReadWrite]
        attr_accessor :read_write
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @read_only = args[:read_only] if args.key?(:read_only)
          @read_write = args[:read_write] if args.key?(:read_write)
        end
      end
      
      # A filter with a single operand.
      class UnaryFilter
        include Google::Apis::Core::Hashable
      
        # A reference to a field, such as `max(messages.time) as max_time`.
        # Corresponds to the JSON property `field`
        # @return [Google::Apis::FirestoreV1::FieldReference]
        attr_accessor :field
      
        # The unary operator to apply.
        # Corresponds to the JSON property `op`
        # @return [String]
        attr_accessor :op
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @field = args[:field] if args.key?(:field)
          @op = args[:op] if args.key?(:op)
        end
      end
      
      # A message that can hold any of the supported value types.
      class Value
        include Google::Apis::Core::Hashable
      
        # An array value.
        # Corresponds to the JSON property `arrayValue`
        # @return [Google::Apis::FirestoreV1::ArrayValue]
        attr_accessor :array_value
      
        # A boolean value.
        # Corresponds to the JSON property `booleanValue`
        # @return [Boolean]
        attr_accessor :boolean_value
        alias_method :boolean_value?, :boolean_value
      
        # A bytes value. Must not exceed 1 MiB - 89 bytes. Only the first 1,500 bytes
        # are considered by queries.
        # Corresponds to the JSON property `bytesValue`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :bytes_value
      
        # A double value.
        # Corresponds to the JSON property `doubleValue`
        # @return [Float]
        attr_accessor :double_value
      
        # An object that represents a latitude/longitude pair. This is expressed as a
        # pair of doubles to represent degrees latitude and degrees longitude. Unless
        # specified otherwise, this object must conform to the WGS84 standard. Values
        # must be within normalized ranges.
        # Corresponds to the JSON property `geoPointValue`
        # @return [Google::Apis::FirestoreV1::LatLng]
        attr_accessor :geo_point_value
      
        # An integer value.
        # Corresponds to the JSON property `integerValue`
        # @return [Fixnum]
        attr_accessor :integer_value
      
        # A map value.
        # Corresponds to the JSON property `mapValue`
        # @return [Google::Apis::FirestoreV1::MapValue]
        attr_accessor :map_value
      
        # A null value.
        # Corresponds to the JSON property `nullValue`
        # @return [String]
        attr_accessor :null_value
      
        # A reference to a document. For example: `projects/`project_id`/databases/`
        # database_id`/documents/`document_path``.
        # Corresponds to the JSON property `referenceValue`
        # @return [String]
        attr_accessor :reference_value
      
        # A string value. The string, represented as UTF-8, must not exceed 1 MiB - 89
        # bytes. Only the first 1,500 bytes of the UTF-8 representation are considered
        # by queries.
        # Corresponds to the JSON property `stringValue`
        # @return [String]
        attr_accessor :string_value
      
        # A timestamp value. Precise only to microseconds. When stored, any additional
        # precision is rounded down.
        # Corresponds to the JSON property `timestampValue`
        # @return [String]
        attr_accessor :timestamp_value
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @array_value = args[:array_value] if args.key?(:array_value)
          @boolean_value = args[:boolean_value] if args.key?(:boolean_value)
          @bytes_value = args[:bytes_value] if args.key?(:bytes_value)
          @double_value = args[:double_value] if args.key?(:double_value)
          @geo_point_value = args[:geo_point_value] if args.key?(:geo_point_value)
          @integer_value = args[:integer_value] if args.key?(:integer_value)
          @map_value = args[:map_value] if args.key?(:map_value)
          @null_value = args[:null_value] if args.key?(:null_value)
          @reference_value = args[:reference_value] if args.key?(:reference_value)
          @string_value = args[:string_value] if args.key?(:string_value)
          @timestamp_value = args[:timestamp_value] if args.key?(:timestamp_value)
        end
      end
      
      # A write on a document.
      class Write
        include Google::Apis::Core::Hashable
      
        # A precondition on a document, used for conditional operations.
        # Corresponds to the JSON property `currentDocument`
        # @return [Google::Apis::FirestoreV1::Precondition]
        attr_accessor :current_document
      
        # A document name to delete. In the format: `projects/`project_id`/databases/`
        # database_id`/documents/`document_path``.
        # Corresponds to the JSON property `delete`
        # @return [String]
        attr_accessor :delete
      
        # A transformation of a document.
        # Corresponds to the JSON property `transform`
        # @return [Google::Apis::FirestoreV1::DocumentTransform]
        attr_accessor :transform
      
        # A Firestore document. Must not exceed 1 MiB - 4 bytes.
        # Corresponds to the JSON property `update`
        # @return [Google::Apis::FirestoreV1::Document]
        attr_accessor :update
      
        # A set of field paths on a document. Used to restrict a get or update operation
        # on a document to a subset of its fields. This is different from standard field
        # masks, as this is always scoped to a Document, and takes in account the
        # dynamic nature of Value.
        # Corresponds to the JSON property `updateMask`
        # @return [Google::Apis::FirestoreV1::DocumentMask]
        attr_accessor :update_mask
      
        # The transforms to perform after update. This field can be set only when the
        # operation is `update`. If present, this write is equivalent to performing `
        # update` and `transform` to the same document atomically and in order.
        # Corresponds to the JSON property `updateTransforms`
        # @return [Array<Google::Apis::FirestoreV1::FieldTransform>]
        attr_accessor :update_transforms
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @current_document = args[:current_document] if args.key?(:current_document)
          @delete = args[:delete] if args.key?(:delete)
          @transform = args[:transform] if args.key?(:transform)
          @update = args[:update] if args.key?(:update)
          @update_mask = args[:update_mask] if args.key?(:update_mask)
          @update_transforms = args[:update_transforms] if args.key?(:update_transforms)
        end
      end
      
      # The request for Firestore.Write. The first request creates a stream, or
      # resumes an existing one from a token. When creating a new stream, the server
      # replies with a response containing only an ID and a token, to use in the next
      # request. When resuming a stream, the server first streams any responses later
      # than the given token, then a response containing only an up-to-date token, to
      # use in the next request.
      class WriteRequest
        include Google::Apis::Core::Hashable
      
        # Labels associated with this write request.
        # Corresponds to the JSON property `labels`
        # @return [Hash<String,String>]
        attr_accessor :labels
      
        # The ID of the write stream to resume. This may only be set in the first
        # message. When left empty, a new write stream will be created.
        # Corresponds to the JSON property `streamId`
        # @return [String]
        attr_accessor :stream_id
      
        # A stream token that was previously sent by the server. The client should set
        # this field to the token from the most recent WriteResponse it has received.
        # This acknowledges that the client has received responses up to this token.
        # After sending this token, earlier tokens may not be used anymore. The server
        # may close the stream if there are too many unacknowledged responses. Leave
        # this field unset when creating a new stream. To resume a stream at a specific
        # point, set this field and the `stream_id` field. Leave this field unset when
        # creating a new stream.
        # Corresponds to the JSON property `streamToken`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :stream_token
      
        # The writes to apply. Always executed atomically and in order. This must be
        # empty on the first request. This may be empty on the last request. This must
        # not be empty on all other requests.
        # Corresponds to the JSON property `writes`
        # @return [Array<Google::Apis::FirestoreV1::Write>]
        attr_accessor :writes
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @labels = args[:labels] if args.key?(:labels)
          @stream_id = args[:stream_id] if args.key?(:stream_id)
          @stream_token = args[:stream_token] if args.key?(:stream_token)
          @writes = args[:writes] if args.key?(:writes)
        end
      end
      
      # The response for Firestore.Write.
      class WriteResponse
        include Google::Apis::Core::Hashable
      
        # The time at which the commit occurred. Any read with an equal or greater `
        # read_time` is guaranteed to see the effects of the write.
        # Corresponds to the JSON property `commitTime`
        # @return [String]
        attr_accessor :commit_time
      
        # The ID of the stream. Only set on the first message, when a new stream was
        # created.
        # Corresponds to the JSON property `streamId`
        # @return [String]
        attr_accessor :stream_id
      
        # A token that represents the position of this response in the stream. This can
        # be used by a client to resume the stream at this point. This field is always
        # set.
        # Corresponds to the JSON property `streamToken`
        # NOTE: Values are automatically base64 encoded/decoded in the client library.
        # @return [String]
        attr_accessor :stream_token
      
        # The result of applying the writes. This i-th write result corresponds to the i-
        # th write in the request.
        # Corresponds to the JSON property `writeResults`
        # @return [Array<Google::Apis::FirestoreV1::WriteResult>]
        attr_accessor :write_results
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @commit_time = args[:commit_time] if args.key?(:commit_time)
          @stream_id = args[:stream_id] if args.key?(:stream_id)
          @stream_token = args[:stream_token] if args.key?(:stream_token)
          @write_results = args[:write_results] if args.key?(:write_results)
        end
      end
      
      # The result of applying a write.
      class WriteResult
        include Google::Apis::Core::Hashable
      
        # The results of applying each DocumentTransform.FieldTransform, in the same
        # order.
        # Corresponds to the JSON property `transformResults`
        # @return [Array<Google::Apis::FirestoreV1::Value>]
        attr_accessor :transform_results
      
        # The last update time of the document after applying the write. Not set after a
        # `delete`. If the write did not actually change the document, this will be the
        # previous update_time.
        # Corresponds to the JSON property `updateTime`
        # @return [String]
        attr_accessor :update_time
      
        def initialize(**args)
           update!(**args)
        end
      
        # Update properties of this object
        def update!(**args)
          @transform_results = args[:transform_results] if args.key?(:transform_results)
          @update_time = args[:update_time] if args.key?(:update_time)
        end
      end
    end
  end
end
