# Path: metatlas/datastructures/object_helpers.py
# ON_NERSC = 'METATLAS_LOCAL' not in os.environ
# def callback_method(func):
#     def notify(self, *args, **kwargs):
#     def __getitem__(self, item):
#     def __init__(self, *args):
#     def register_callback(self, cb):
#     def unregister_callback(self, cbid):
# def set_docstring(cls):
# def _get_subclasses(cls):
#     def __init__(self):
#     def get_instance(cls):
#     def get_connection(self):
#     def close_connection(self):
#     def convert_to_double(self, table, entry):
#     def save_objects(self, objects, _override=False):
#     def create_link_tables(self, klass):
#     def _get_save_data(self, obj, override=False):
#     def fix_table(self, table_name):
#     def retrieve(self, object_type, **kwargs):
#     def remove(self, object_type, **kwargs):
#     def remove_objects(self, objects, all_versions=True, **kwargs):
# def format_timestamp(tstamp):
#     def validate(self, obj, value):
#     def retrieve(self):
#     def __repr__(self):
#     def __str__(self):
#     def validate(self, obj, value):
# def get_from_nersc(user, relative_path):
# def rollback_and_log(db_connection, err):
# class NotifyList(list):
# class Workspace(object):
# class MetList(List):
# class MetUnicode(CUnicode):
# class MetFloat(CFloat):
# class MetInt(CInt):
# class MetBool(CBool):
# class Stub(HasTraits):
# class MetInstance(Instance):
# class MetEnum(Enum):


import getpass
import logging
import os
import pprint
import time
import uuid
import pandas as pd
from typing import Dict
from pwd import getpwuid
from tabulate import tabulate
from .object_helpers import (
    set_docstring, Workspace, format_timestamp, MetList,
    MetUnicode, MetFloat, MetInstance, MetInt, MetEnum, MetBool, HasTraits,
    Stub
)
from six.moves import zip
            self.last_modified = time.time()
            return True, None
        else:
            changed, prev_uid = self._changed, self.prev_uid
            if changed:
                self.last_modified = time.time()
                self.prev_uid = uuid.uuid4().hex
        self._changed = False
        self._loopback_guard = False
        return changed, prev_uid

    def clone(self, recursive=False):
        """Create a new version of this object.

        Parameters
        ----------
        recursive: boolean, optional
            If true, clone all of the descendant objects as well.

        Returns
        -------
        obj: MetatlasObject
            Cloned object.
        """
        logger.debug('Cloning instance of %s with recursive=%s', self.__class__.__name__, recursive)
        obj = self.__class__()
        for (tname, trait) in self.traits().items():
            if tname.startswith('_') or trait.metadata.get('readonly', False):
                continue
            val = getattr(self, tname)

# Path: metatlas/datastructures/object_helpers.py
# ON_NERSC = 'METATLAS_LOCAL' not in os.environ
# def callback_method(func):
#     def notify(self, *args, **kwargs):
#     def __getitem__(self, item):
#     def __init__(self, *args):
#     def register_callback(self, cb):
#     def unregister_callback(self, cbid):
# def set_docstring(cls):
# def _get_subclasses(cls):
#     def __init__(self):
#     def get_instance(cls):
#     def get_connection(self):
#     def close_connection(self):
#     def convert_to_double(self, table, entry):
#     def save_objects(self, objects, _override=False):
#     def create_link_tables(self, klass):
#     def _get_save_data(self, obj, override=False):
#     def fix_table(self, table_name):
#     def retrieve(self, object_type, **kwargs):
#     def remove(self, object_type, **kwargs):
#     def remove_objects(self, objects, all_versions=True, **kwargs):
# def format_timestamp(tstamp):
#     def validate(self, obj, value):
#     def retrieve(self):
#     def __repr__(self):
#     def __str__(self):
#     def validate(self, obj, value):
# def get_from_nersc(user, relative_path):
# def rollback_and_log(db_connection, err):
# class NotifyList(list):
# class Workspace(object):
# class MetList(List):
# class MetUnicode(CUnicode):
# class MetFloat(CFloat):
# class MetInt(CInt):
# class MetBool(CBool):
# class Stub(HasTraits):
# class MetInstance(Instance):
# class MetEnum(Enum):


# Path: metatlas/datastructures/metatlas_objects.py
import getpass
import logging
import os
import pprint
import time
import uuid
import pandas as pd
from typing import Dict
from pwd import getpwuid
from tabulate import tabulate
from .object_helpers import (
    set_docstring, Workspace, format_timestamp, MetList,
    MetUnicode, MetFloat, MetInstance, MetInt, MetEnum, MetBool, HasTraits,
    Stub
)
from six.moves import zip

            self.last_modified = time.time()
            return True, None
        else:
            changed, prev_uid = self._changed, self.prev_uid
            if changed:
                self.last_modified = time.time()
                self.prev_uid = uuid.uuid4().hex
        self._changed = False
        self._loopback_guard = False
        return changed, prev_uid

    def clone(self, recursive=False):
        """Create a new version of this object.

        Parameters
        ----------
        recursive: boolean, optional
            If true, clone all of the descendant objects as well.

        Returns
        -------
        obj: MetatlasObject
            Cloned object.
        """
        logger.debug('Cloning instance of %s with recursive=%s', self.__class__.__name__, recursive)
        obj = self.__class__()
        for (tname, trait) in self.traits().items():
            if tname.startswith('_') or trait.metadata.get('readonly', False):
                continue
            val = getattr(self, tname)

            if recursive and isinstance(trait, MetList):