
'''simple docstring'''
import inspect
import os
import re

from transformers.configuration_utils import PretrainedConfig
from transformers.utils import direct_transformers_import


# All paths are set with the intent you should run this script from the root of the repo with the command
# python utils/check_config_docstrings.py
lowerCAmelCase					:    List[str]           = 'src/transformers'


# This is to make sure the transformers module imported is the one in the repo.
lowerCAmelCase					:    Union[str, Any]           = direct_transformers_import(PATH_TO_TRANSFORMERS)

lowerCAmelCase					:    str           = transformers.models.auto.configuration_auto.CONFIG_MAPPING

lowerCAmelCase					:    Any           = {
    # used to compute the property `self.chunk_length`
    'EncodecConfig': ['overlap'],
    # used as `self.bert_model = BertModel(config, ...)`
    'DPRConfig': True,
    # not used in modeling files, but it's an important information
    'FSMTConfig': ['langs'],
    # used internally in the configuration class file
    'GPTNeoConfig': ['attention_types'],
    # used internally in the configuration class file
    'EsmConfig': ['is_folding_model'],
    # used during training (despite we don't have training script for these models yet)
    'Mask2FormerConfig': ['ignore_value'],
    # `ignore_value` used during training (despite we don't have training script for these models yet)
    # `norm` used in conversion script (despite not using in the modeling file)
    'OneFormerConfig': ['ignore_value', 'norm'],
    # used during preprocessing and collation, see `collating_graphormer.py`
    'GraphormerConfig': ['spatial_pos_max'],
    # used internally in the configuration class file
    'T5Config': ['feed_forward_proj'],
    # used internally in the configuration class file
    # `tokenizer_class` get default value `T5Tokenizer` intentionally
    'MT5Config': ['feed_forward_proj', 'tokenizer_class'],
    'UMT5Config': ['feed_forward_proj', 'tokenizer_class'],
    # used internally in the configuration class file
    'LongT5Config': ['feed_forward_proj'],
    # used internally in the configuration class file
    'SwitchTransformersConfig': ['feed_forward_proj'],
    # having default values other than `1e-5` - we can't fix them without breaking
    'BioGptConfig': ['layer_norm_eps'],
    # having default values other than `1e-5` - we can't fix them without breaking
    'GLPNConfig': ['layer_norm_eps'],
    # having default values other than `1e-5` - we can't fix them without breaking
    'SegformerConfig': ['layer_norm_eps'],
    # having default values other than `1e-5` - we can't fix them without breaking
    'CvtConfig': ['layer_norm_eps'],
    # having default values other than `1e-5` - we can't fix them without breaking
    'PerceiverConfig': ['layer_norm_eps'],
    # used internally to calculate the feature size
    'InformerConfig': ['num_static_real_features', 'num_time_features'],
    # used internally to calculate the feature size
    'TimeSeriesTransformerConfig': ['num_static_real_features', 'num_time_features'],
    # used internally to calculate the feature size
    'AutoformerConfig': ['num_static_real_features', 'num_time_features'],
    # used internally to calculate `mlp_dim`
    'SamVisionConfig': ['mlp_ratio'],
    # For (head) training, but so far not implemented
    'ClapAudioConfig': ['num_classes'],
    # Not used, but providing useful information to users
    'SpeechT5HifiGanConfig': ['sampling_rate'],
}


# TODO (ydshieh): Check the failing cases, try to fix them or move some cases to the above block once we are sure
SPECIAL_CASES_TO_ALLOW.update(
    {
        'CLIPSegConfig': True,
        'DeformableDetrConfig': True,
        'DetaConfig': True,
        'DinatConfig': True,
        'DonutSwinConfig': True,
        'EfficientFormerConfig': True,
        'FSMTConfig': True,
        'JukeboxConfig': True,
        'LayoutLMv2Config': True,
        'MaskFormerSwinConfig': True,
        'MT5Config': True,
        'NatConfig': True,
        'OneFormerConfig': True,
        'PerceiverConfig': True,
        'RagConfig': True,
        'SpeechT5Config': True,
        'SwinConfig': True,
        'Swin2SRConfig': True,
        'Swinv2Config': True,
        'SwitchTransformersConfig': True,
        'TableTransformerConfig': True,
        'TapasConfig': True,
        'TransfoXLConfig': True,
        'UniSpeechConfig': True,
        'UniSpeechSatConfig': True,
        'WavLMConfig': True,
        'WhisperConfig': True,
        # TODO: @Arthur (for `alignment_head` and `alignment_layer`)
        'JukeboxPriorConfig': True,
        # TODO: @Younes (for `is_decoder`)
        'Pix2StructTextConfig': True,
    }
)







def 		A_(     A						:		Optional[int]		,     A						:		List[str]		,     A						:		Tuple		,     A						:		Tuple):
							UpperCamelCase   			=     False
							for attribute in attributes:
														for modeling_source in source_strings:
																					# check if we can find `config.xxx`, `getattr(config, "xxx", ...)` or `getattr(self.config, "xxx", ...)`
																					if (
																					    f'''config.{attribute}''' in modeling_source
																					    or f'''getattr(config, "{attribute}"''' in modeling_source
																					    or f'''getattr(self.config, "{attribute}"''' in modeling_source
																					):
																												UpperCamelCase   			=     True
																					# Deal with multi-line cases
																					elif (
																					    re.search(
																					        rf'''getattr[ \t\v\n\r\f]*\([ \t\v\n\r\f]*(self\.)?config,[ \t\v\n\r\f]*"{attribute}"'''		,     A		,     )
																					    is not None
																					):
																												UpperCamelCase   			=     True
																					# `SequenceSummary` is called with `SequenceSummary(config)`
																					elif attribute in [
																					    "summary_type",
																					    "summary_use_proj",
																					    "summary_activation",
																					    "summary_last_dropout",
																					    "summary_proj_to_labels",
																					    "summary_first_dropout",
																					]:
																												if "SequenceSummary" in modeling_source:
																																			UpperCamelCase   			=     True
																					if attribute_used:
																												break
														if attribute_used:
																					break

    # common and important attributes, even if they do not always appear in the modeling files
							UpperCamelCase   			=     [
							    'bos_index',
							    'eos_index',
							    'pad_index',
							    'unk_index',
							    'mask_index',
							    'image_size',
							    'use_cache',
							    'out_features',
							    'out_indices',
							]
							UpperCamelCase   			=     ['encoder_no_repeat_ngram_size']

							# Special cases to be allowed
							UpperCamelCase   			=     True
							if not attribute_used:
														UpperCamelCase   			=     False
														for attribute in attributes:
																					# Allow if the default value in the configuration class is different from the one in `PretrainedConfig`
																					if attribute in ["is_encoder_decoder"] and default_value is True:
																												UpperCamelCase   			=     True
																					elif attribute in ["tie_word_embeddings"] and default_value is False:
																												UpperCamelCase   			=     True

																					# Allow cases without checking the default value in the configuration class
																					elif attribute in attributes_to_allow + attributes_used_in_generation:
																												UpperCamelCase   			=     True
																					elif attribute.endswith('_token_id'):
																												UpperCamelCase   			=     True

																					# configuration class specific cases
																					if not case_allowed:
																												UpperCamelCase   			=     SPECIAL_CASES_TO_ALLOW.get(config_class.__name__		,     [])
																												UpperCamelCase   			=     allowed_cases is True or attribute in allowed_cases

							return attribute_used or case_allowed







def 		A_(     A						:		Optional[Any]):
							UpperCamelCase   			=     dict(inspect.signature(config_class.__init__).parameters)
							UpperCamelCase   			=     [x for x in list(signature.keys()) if x not in ['self', 'kwargs']]
							UpperCamelCase   			=     [signature[param].default for param in parameter_names]

							# If `attribute_map` exists, an attribute can have different names to be used in the modeling files, and as long
							# as one variant is used, the test should pass
							UpperCamelCase   			=     {}
							if len(config_class.attribute_map) > 0:
														UpperCamelCase   			=     {v: k for k, v in config_class.attribute_map.items()}

							# Get the path to modeling source files
							UpperCamelCase   			=     inspect.getsourcefile(A)
							UpperCamelCase   			=     os.path.dirname(A)
							# Let's check against all frameworks: as long as one framework uses an attribute, we are good.
							UpperCamelCase   			=     [os.path.join(A		,     A) for fn in os.listdir(A) if fn.startswith('modeling_')]

							# Get the source code strings
							UpperCamelCase   			=     []
							for path in modeling_paths:
														if os.path.isfile(A):
																					with open(A) as fp:
																												modeling_sources.append(fp.read())

							UpperCamelCase   			=     []
							for config_param, default_value in zip(A		,     A):
														# `attributes` here is all the variant names for `config_param`
														UpperCamelCase   			=     [config_param]
														# some configuration classes have non-empty `attribute_map`, and both names could be used in the
														# corresponding modeling files. As long as one of them appears, it is fine.
														if config_param in reversed_attribute_map:
																					attributes.append(reversed_attribute_map[config_param])

														if not check_attribute_being_used(A		,     A		,     A		,     A):
																					unused_attributes.append(attributes[0])

							return sorted(A)







def 		A_(     ):
							UpperCamelCase   			=     {}
							for _config_class in list(CONFIG_MAPPING.values()):
														# Skip deprecated models
														if "models.deprecated" in _config_class.__module__:
																					continue
														# Some config classes are not in `CONFIG_MAPPING` (e.g. `CLIPVisionConfig`, `Blip2VisionConfig`, etc.)
														UpperCamelCase   			=     [
														    cls
														    for name, cls in inspect.getmembers(
														        inspect.getmodule(_config_class)		,     lambda A: inspect.isclass(A)
														        and issubclass(A		,     A)
														        and inspect.getmodule(A) == inspect.getmodule(_config_class)		,     )
														]
														for config_class in config_classes_in_module:
																					UpperCamelCase   			=     check_config_attributes_being_used(A)
																					if len(A) > 0:
																												UpperCamelCase   			=     unused_attributes

							if len(A) > 0:
														UpperCamelCase   			=     'The following configuration classes contain unused attributes in the corresponding modeling files:\n'
														for name, attributes in configs_with_unused_attributes.items():
																					error += f'''{name}: {attributes}\n'''

														raise ValueError(A)


if __name__ == "__main__":
						check_config_attributes()









'''simple docstring'''





import inspect
import unittest

import torch
import torch.nn as nn

from accelerate.hooks import (
    AlignDevicesHook,
    ModelHook,
    SequentialHook,
    add_hook_to_module,
    attach_align_device_hook,
    remove_hook_from_module,
    remove_hook_from_submodules,
)
from accelerate.test_utils import require_multi_gpu






class __A     (    nn.Module		):



 '''simple docstring'''







 def __init__(self			)       ->	Dict:


      """simple docstring"""



      super().__init__()
      _a           =    nn.Linear(3					,  4			)
      _a           =    nn.BatchNormad(4			)
      _a           =    nn.Linear(4					,  5			)



 def    a__    (self					,  A			)       ->	Dict:


      """simple docstring"""



      return self.lineara(self.batchnorm(self.lineara(A			)			)			)






class __A     (    A		):



 '''simple docstring'''







 def    a__    (self					,  A					,  *A					,  **A			)       ->	Optional[Any]:


      """simple docstring"""



      return (args[0] + 1,) + args[1:], kwargs






class __A     (    A		):



 '''simple docstring'''







 def    a__    (self					,  A					,  A			)       ->	int:


      """simple docstring"""



      return output + 1






class __A     (    unittest.TestCase		):



 '''simple docstring'''







 def    a__    (self			)       ->	Union[str, Any]:


      """simple docstring"""



      _a           =    ModelForTest()
      _a           =    ModelHook()

      add_hook_to_module(A					,  A			)
      self.assertEqual(test_model._hf_hook					,  A			)
      self.assertTrue(hasattr(A					,  '''_old_forward'''			)			)

      # Check adding the hook did not change the name or the signature
      self.assertEqual(test_model.forward.__name__					,  '''forward'''			)
      self.assertListEqual(list(inspect.signature(test_model.forward			).parameters			)					,  ['''x''']			)

      remove_hook_from_module(A			)
      self.assertFalse(hasattr(A					,  '''_hf_hook'''			)			)
      self.assertFalse(hasattr(A					,  '''_old_forward'''			)			)



 def    a__    (self			)       ->	Any:


      """simple docstring"""



      _a           =    ModelForTest()
      _a           =    ModelHook()

      add_hook_to_module(A					,  A			)
      add_hook_to_module(A					,  A					,  append=A			)

      self.assertEqual(isinstance(test_model._hf_hook					,  A			)					,  A			)
      self.assertEqual(len(test_model._hf_hook.hooks			)					,  2			)
      self.assertTrue(hasattr(A					,  '''_old_forward'''			)			)

      # Check adding the hook did not change the name or the signature
      self.assertEqual(test_model.forward.__name__					,  '''forward'''			)
      self.assertListEqual(list(inspect.signature(test_model.forward			).parameters			)					,  ['''x''']			)

      remove_hook_from_module(A			)
      self.assertFalse(hasattr(A					,  '''_hf_hook'''			)			)
      self.assertFalse(hasattr(A					,  '''_old_forward'''			)			)



 def    a__    (self			)       ->	Union[str, Any]:


      """simple docstring"""



      _a           =    ModelForTest()
      _a           =    torch.randn(2					,  3			)
      _a           =    test_model(x + 1			)
      _a           =    test_model(x + 2			)

      _a           =    PreForwardHook()
      add_hook_to_module(A					,  A			)
      _a           =    test_model(A			)
      self.assertTrue(torch.allclose(A					,  A					,  atol=1E-5			)			)

      # Attaching a hook to a model when it already has one replaces, does not chain
      _a           =    PreForwardHook()
      add_hook_to_module(A					,  A			)
      _a           =    test_model(A			)
      self.assertTrue(torch.allclose(A					,  A					,  atol=1E-5			)			)

      # You need to use the sequential hook to chain two or more hooks
      _a           =    SequentialHook(PreForwardHook()					,  PreForwardHook()			)
      add_hook_to_module(A					,  A			)

      _a           =    test_model(A			)
      assert torch.allclose(A					,  A					,  atol=1E-5			)



 def    a__    (self			)       ->	str:


      """simple docstring"""



      _a           =    ModelForTest()
      _a           =    torch.randn(2					,  3			)
      _a           =    test_model(A			)

      _a           =    PostForwardHook()
      add_hook_to_module(A					,  A			)
      _a           =    test_model(A			)
      self.assertTrue(torch.allclose(A					,  output + 1					,  atol=1E-5			)			)

      # Attaching a hook to a model when it already has one replaces, does not chain
      _a           =    PostForwardHook()
      add_hook_to_module(A					,  A			)
      _a           =    test_model(A			)
      self.assertTrue(torch.allclose(A					,  output + 1					,  atol=1E-5			)			)

      # You need to use the sequential hook to chain two or more hooks
      _a           =    SequentialHook(PostForwardHook()					,  PostForwardHook()			)
      add_hook_to_module(A					,  A			)

      _a           =    test_model(A			)
      assert torch.allclose(A					,  output + 2					,  atol=1E-5			)



 def    a__    (self			)       ->	List[str]:


      """simple docstring"""



      _a           =    ModelForTest()
      _a           =    torch.randn(2					,  3			)
      _a           =    test_model(A			)

      _a           =    PostForwardHook()
      add_hook_to_module(A					,  A			)
      _a           =    test_model(A			)
      self.assertTrue(torch.allclose(A					,  output + 1			)			)
      self.assertTrue(outputa.requires_grad			)

      _a           =    True
      _a           =    test_model(A			)
      self.assertFalse(outputa.requires_grad			)



 @require_multi_gpu
 def    a__    (self			)       ->	List[Any]:


      """simple docstring"""



      _a           =    ModelForTest()
      # Everything is on CPU
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)

      # This will move each submodule on different devices
      add_hook_to_module(model.lineara					,  AlignDevicesHook(execution_device=0			)			)
      add_hook_to_module(model.batchnorm					,  AlignDevicesHook(execution_device=0			)			)
      add_hook_to_module(model.lineara					,  AlignDevicesHook(execution_device=1			)			)

      self.assertEqual(model.lineara.weight.device					,  torch.device(0			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device(0			)			)
      self.assertEqual(model.batchnorm.running_mean.device					,  torch.device(0			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device(1			)			)

      # We can still make a forward pass. The input does not need to be on any particular device
      _a           =    torch.randn(2					,  3			)
      _a           =    model(A			)
      self.assertEqual(output.device					,  torch.device(1			)			)

      # We can add a general hook to put back output on same device as input.
      add_hook_to_module(A					,  AlignDevicesHook(io_same_device=A			)			)
      _a           =    torch.randn(2					,  3			).to(0			)
      _a           =    model(A			)
      self.assertEqual(output.device					,  torch.device(0			)			)



 def    a__    (self			)       ->	List[str]:


      """simple docstring"""



      _a           =    ModelForTest()

      # Everything is on CPU
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)

      # This will move each submodule on different devices
      _a           =    {'''execution_device''': 0 if torch.cuda.is_available() else '''cpu''', '''offload''': True}

      add_hook_to_module(model.lineara					,  AlignDevicesHook(**A			)			)
      add_hook_to_module(model.batchnorm					,  AlignDevicesHook(**A			)			)
      add_hook_to_module(model.lineara					,  AlignDevicesHook(**A			)			)

      # Parameters have been offloaded, so on the meta device
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      # Buffers are not included in the offload by default, so are on the execution device
      _a           =    torch.device(hook_kwargs['''execution_device''']			)
      self.assertEqual(model.batchnorm.running_mean.device					,  A			)

      _a           =    torch.randn(2					,  3			)
      _a           =    model(A			)
      self.assertEqual(output.device					,  A			)

      # Removing hooks loads back the weights in the model.
      remove_hook_from_module(model.lineara			)
      remove_hook_from_module(model.batchnorm			)
      remove_hook_from_module(model.lineara			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)

      # Now test with buffers included in the offload
      _a           =    {
          '''execution_device''': 0 if torch.cuda.is_available() else '''cpu''',
          '''offload''': True,
          '''offload_buffers''': True,
      }

      add_hook_to_module(model.lineara					,  AlignDevicesHook(**A			)			)
      add_hook_to_module(model.batchnorm					,  AlignDevicesHook(**A			)			)
      add_hook_to_module(model.lineara					,  AlignDevicesHook(**A			)			)

      # Parameters have been offloaded, so on the meta device, buffers included
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.batchnorm.running_mean.device					,  torch.device('''meta'''			)			)

      _a           =    torch.randn(2					,  3			)
      _a           =    model(A			)
      self.assertEqual(output.device					,  A			)

      # Removing hooks loads back the weights in the model.
      remove_hook_from_module(model.lineara			)
      remove_hook_from_module(model.batchnorm			)
      remove_hook_from_module(model.lineara			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)



 def    a__    (self			)       ->	Optional[int]:


      """simple docstring"""



      _a           =    ModelForTest()

      # Everything is on CPU
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)

      # This will move each submodule on different devices
      _a           =    0 if torch.cuda.is_available() else '''cpu'''
      attach_align_device_hook(A					,  execution_device=A					,  offload=A			)

      # Parameters have been offloaded, so on the meta device
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      # Buffers are not included in the offload by default, so are on the execution device
      _a           =    torch.device(A			)
      self.assertEqual(model.batchnorm.running_mean.device					,  A			)

      _a           =    torch.randn(2					,  3			)
      _a           =    model(A			)
      self.assertEqual(output.device					,  A			)

      # Removing hooks loads back the weights in the model.
      remove_hook_from_submodules(A			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)

      # Now test with buffers included in the offload
      attach_align_device_hook(A					,  execution_device=A					,  offload=A					,  offload_buffers=A			)

      # Parameters have been offloaded, so on the meta device, buffers included
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.batchnorm.running_mean.device					,  torch.device('''meta'''			)			)

      _a           =    torch.randn(2					,  3			)
      _a           =    model(A			)
      self.assertEqual(output.device					,  A			)

      # Removing hooks loads back the weights in the model.
      remove_hook_from_submodules(A			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)



 def    a__    (self			)       ->	Any:


      """simple docstring"""



      _a           =    ModelForTest()

      # Everything is on CPU
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)

      # This will move each submodule on different devices
      _a           =    0 if torch.cuda.is_available() else '''cpu'''
      attach_align_device_hook(
          A					,  execution_device=A					,  offload=A					,  weights_map=model.state_dict()			)

      # Parameters have been offloaded, so on the meta device
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      # Buffers are not included in the offload by default, so are on the execution device
      _a           =    torch.device(A			)
      self.assertEqual(model.batchnorm.running_mean.device					,  A			)

      _a           =    torch.randn(2					,  3			)
      _a           =    model(A			)
      self.assertEqual(output.device					,  A			)

      # Removing hooks loads back the weights in the model.
      remove_hook_from_submodules(A			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)

      # Now test with buffers included in the offload
      attach_align_device_hook(
          A					,  execution_device=A					,  offload=A					,  weights_map=model.state_dict()					,  offload_buffers=A					,  )

      # Parameters have been offloaded, so on the meta device, buffers included
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''meta'''			)			)
      self.assertEqual(model.batchnorm.running_mean.device					,  torch.device('''meta'''			)			)

      _a           =    torch.randn(2					,  3			)
      _a           =    model(A			)
      self.assertEqual(output.device					,  A			)

      # Removing hooks loads back the weights in the model.
      remove_hook_from_submodules(A			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.batchnorm.weight.device					,  torch.device('''cpu'''			)			)
      self.assertEqual(model.lineara.weight.device					,  torch.device('''cpu'''			)			)



