




"""simple docstring"""




from ...configuration_utils import PretrainedConfig
from ...utils import logging


lowerCAmelCase							:			str     							=							logging.get_logger(__name__)

lowerCAmelCase							:			List[Any]     							=							{"""ctrl""": """https://huggingface.co/ctrl/resolve/main/config.json"""}






class     __magic_name__							(       UpperCAmelCase__				):






				'''simple docstring'''
				__UpperCamelCase			  =						"ctrl"
				__UpperCamelCase			  =						["past_key_values"]
				__UpperCamelCase			  =						{
				    "max_position_embeddings": "n_positions",
				    "hidden_size": "n_embd",
				    "num_attention_heads": "n_head",
				    "num_hidden_layers": "n_layer",
				}





				def __init__(       self		, _a=246_534		, _a=256		, _a=1_280		, _a=8_192		, _a=48		, _a=16		, _a=0.1		, _a=0.1		, _a=1e-6		, _a=0.02		, _a=True		, **_a		, ):





							"""simple docstring"""
							lowerCamelCase			      =					vocab_size
							lowerCamelCase			      =					n_positions
							lowerCamelCase			      =					n_embd
							lowerCamelCase			      =					n_layer
							lowerCamelCase			      =					n_head
							lowerCamelCase			      =					dff
							lowerCamelCase			      =					resid_pdrop
							lowerCamelCase			      =					embd_pdrop
							lowerCamelCase			      =					layer_norm_epsilon
							lowerCamelCase			      =					initializer_range

							lowerCamelCase			      =					use_cache

							super().__init__(**_a )









"""simple docstring"""




import numpy as np
import torch
from torch.utils.data import Dataset, IterableDataset

from ..utils.generic import ModelOutput






class     __magic_name__							(       UpperCAmelCase__				):






				'''simple docstring'''





				def __init__(       self		, _a		, _a		, _a ):





							"""simple docstring"""
							lowerCamelCase			      =					dataset
							lowerCamelCase			      =					process
							lowerCamelCase			      =					params





				def __len__(       self ):





							"""simple docstring"""
							return len(self.dataset )





				def __getitem__(       self		, _a ):





							"""simple docstring"""
							lowerCamelCase			      =					self.dataset[i]
							lowerCamelCase			      =					self.process(_a		, **self.params )
							return processed






class     __magic_name__							(       UpperCAmelCase__				):






				'''simple docstring'''





				def __init__(       self		, _a		, _a		, _a		, _a=None ):





							"""simple docstring"""
							lowerCamelCase			      =					loader
							lowerCamelCase			      =					infer
							lowerCamelCase			      =					params
							if loader_batch_size == 1:
										# Let's spare some time by deactivating altogether
										lowerCamelCase			      =					None
							lowerCamelCase			      =					loader_batch_size

							# Internal bookkeeping
							lowerCamelCase			      =					None
							lowerCamelCase			      =					None





				def __len__(       self ):





							"""simple docstring"""
							return len(self.loader )





				def __iter__(       self ):





							"""simple docstring"""
							lowerCamelCase			      =					iter(self.loader )
							return self





				def    _lowerCAmelCase				(       self ):





							"""simple docstring"""
							if isinstance(self._loader_batch_data		, torch.Tensor ):
										# Batch data is simple tensor, just fetch the slice
										lowerCamelCase			      =					self._loader_batch_data[self._loader_batch_index]
							else:
										# Batch data is assumed to be BaseModelOutput (or dict)
										lowerCamelCase			      =					{}
										for k, element in self._loader_batch_data.items():
													if isinstance(_a		, _a ):
																# Convert ModelOutput to tuple first
																lowerCamelCase			      =					element.to_tuple()
																if isinstance(element[0]		, torch.Tensor ):
																			lowerCamelCase			      =					tuple(el[self._loader_batch_index].unsqueeze(0 ) for el in element )
																elif isinstance(element[0]		, np.ndarray ):
																			lowerCamelCase			      =					tuple(np.expand_dims(el[self._loader_batch_index]		, 0 ) for el in element )
																continue
													if k in {"hidden_states", "past_key_values", "attentions"} and isinstance(_a		, _a ):
																# Those are stored as lists of tensors so need specific unbatching.
																if isinstance(element[0]		, torch.Tensor ):
																			lowerCamelCase			      =					tuple(el[self._loader_batch_index].unsqueeze(0 ) for el in element )
																elif isinstance(element[0]		, np.ndarray ):
																			lowerCamelCase			      =					tuple(np.expand_dims(el[self._loader_batch_index]		, 0 ) for el in element )
																continue
													if element is None:
																# This can happen for optional data that get passed around
																lowerCamelCase			      =					None
													elif isinstance(element[self._loader_batch_index]		, torch.Tensor ):
																# Take correct batch data, but make it looked like batch_size=1
																# For compatibility with other methods within transformers

																lowerCamelCase			      =					element[self._loader_batch_index].unsqueeze(0 )
													elif isinstance(element[self._loader_batch_index]		, np.ndarray ):
																# Take correct batch data, but make it looked like batch_size=1
																# For compatibility with other methods within transformers
																lowerCamelCase			      =					np.expand_dims(element[self._loader_batch_index]		, 0 )
													else:
																# This is typically a list, so no need to `unsqueeze`.
																lowerCamelCase			      =					element[self._loader_batch_index]
            # Recreate the element by reusing the original class to make it look
            # batch_size=1
										lowerCamelCase			      =					self._loader_batch_data.__class__(_a )
							self._loader_batch_index += 1
							return result





				def    _lowerCAmelCase				(       self ):





							"""simple docstring"""
							if self._loader_batch_index is not None and self._loader_batch_index < self.loader_batch_size:
										# We are currently unrolling a batch so we just need to return
										# the current item within a batch
										return self.loader_batch_item()

							# We're out of items within a batch
							lowerCamelCase			      =					next(self.iterator )
							lowerCamelCase			      =					self.infer(_a		, **self.params )
							# We now have a batch of "inferred things".
							if self.loader_batch_size is not None:
										# Try to infer the size of the batch
										if isinstance(_a		, torch.Tensor ):
													lowerCamelCase			      =					processed
										else:
													lowerCamelCase			      =					list(processed.keys() )[0]
													lowerCamelCase			      =					processed[key]
										if isinstance(_a		, _a ):
													lowerCamelCase			      =					len(_a )
										else:
													lowerCamelCase			      =					first_tensor.shape[0]
										if 0 < observed_batch_size < self.loader_batch_size:
													# could be last batch so we can't unroll as many
													# elements.
													lowerCamelCase			      =					observed_batch_size
										# Setting internal index to unwrap the batch
										lowerCamelCase			      =					processed
										lowerCamelCase			      =					0
										return self.loader_batch_item()
							else:
										# We're not unrolling batches
										return processed






class     __magic_name__							(       UpperCAmelCase__				):






				'''simple docstring'''





				def __init__(       self		, _a		, _a		, _a		, _a=None ):





							"""simple docstring"""
							super().__init__(_a		, _a		, _a )





				def __iter__(       self ):





							"""simple docstring"""
							lowerCamelCase			      =					iter(self.loader )
							lowerCamelCase			      =					None
							return self





				def    _lowerCAmelCase				(       self ):





							"""simple docstring"""
							if self.subiterator is None:
										lowerCamelCase			      =					self.infer(next(self.iterator )		, **self.params )
							try:
										# Try to return next item
										lowerCamelCase			      =					next(self.subiterator )
							except StopIteration:
										# When a preprocess iterator ends, we can start lookig at the next item
										# ChunkIterator will keep feeding until ALL elements of iterator
										# all have created their subiterator and have been iterating against.
										#
										# Another way to look at it, is we're basically flattening lists of lists
										# into a single list, but with generators
										lowerCamelCase			      =					self.infer(next(self.iterator )		, **self.params )
										lowerCamelCase			      =					next(self.subiterator )
							return processed






class     __magic_name__							(       UpperCAmelCase__				):






				'''simple docstring'''





				def __iter__(       self ):





							"""simple docstring"""
							lowerCamelCase			      =					iter(self.loader )
							return self





				def    _lowerCAmelCase				(       self ):





							"""simple docstring"""
							# Extremely similar to PipelineIterator in its unpacking mechanism
							# BUT, we have an extra required item which is the presence of `is_last`
							# That is because everything is flattened by `PipelineChunkIterator` we
							# need to keep track of how to regroup here in the original `process`
							# boundaries so that `process` and `postprocess` see the same data.

							# This iterator accumulates items (possibly while unbatching) until it
							# its a `is_last` and then just passes it on to the caller.
							lowerCamelCase			      =					False
							lowerCamelCase			      =					[]
							if self._loader_batch_index is not None and self._loader_batch_index < self.loader_batch_size:
										while self._loader_batch_index < self.loader_batch_size:
													lowerCamelCase			      =					self.loader_batch_item()
													lowerCamelCase			      =					item.pop("""is_last""" )
													accumulator.append(_a )
													if is_last:
																return accumulator

							while not is_last:
										lowerCamelCase			      =					self.infer(next(self.iterator )		, **self.params )
										if self.loader_batch_size is not None:
													if isinstance(_a		, torch.Tensor ):
																lowerCamelCase			      =					processed
													else:
																lowerCamelCase			      =					list(processed.keys() )[0]
																lowerCamelCase			      =					processed[key]
													if isinstance(_a		, _a ):
																lowerCamelCase			      =					len(_a )
													else:
																lowerCamelCase			      =					first_tensor.shape[0]
													if 0 < observed_batch_size < self.loader_batch_size:
																# could be last batch so we can't unroll as many
																# elements.
																lowerCamelCase			      =					observed_batch_size
													lowerCamelCase			      =					processed
													lowerCamelCase			      =					0
													while self._loader_batch_index < self.loader_batch_size:
																lowerCamelCase			      =					self.loader_batch_item()
																lowerCamelCase			      =					item.pop("""is_last""" )
																accumulator.append(_a )
																if is_last:
																			return accumulator
										else:
													lowerCamelCase			      =					processed
													lowerCamelCase			      =					item.pop("""is_last""" )
													accumulator.append(_a )
							return accumulator






class     __magic_name__							(       UpperCAmelCase__				):






				'''simple docstring'''





				def __init__(       self		, _a		, _a ):





							"""simple docstring"""
							lowerCamelCase			      =					dataset
							lowerCamelCase			      =					key





				def __len__(       self ):





							"""simple docstring"""
							return len(self.dataset )





				def __getitem__(       self		, _a ):





							"""simple docstring"""
							return self.dataset[i][self.key]






class     __magic_name__							(       UpperCAmelCase__				):






				'''simple docstring'''





				def __init__(       self		, _a		, _a		, _a ):





							"""simple docstring"""
							lowerCamelCase			      =					dataset
							lowerCamelCase			      =					keya
							lowerCamelCase			      =					keya





				def __len__(       self ):





							"""simple docstring"""
							return len(self.dataset )





				def __getitem__(       self		, _a ):





							"""simple docstring"""
							return {"text": self.dataset[i][self.keya], "text_pair": self.dataset[i][self.keya]}



