code: 
  """simple docstring"""
  
  
  
  
  
  
  
  from typing import TYPE_CHECKING
  
  from ...utils import (
      OptionalDependencyNotAvailable,
      _LazyModule,
      is_flax_available,
      is_sentencepiece_available,
      is_tf_available,
      is_tokenizers_available,
      is_torch_available,
  )
  
  
  SCREAMING_SNAKE_CASE_     				=   {
      'configuration_switch_transformers': [
          'SWITCH_TRANSFORMERS_PRETRAINED_CONFIG_ARCHIVE_MAP',
          'SwitchTransformersConfig',
          'SwitchTransformersOnnxConfig',
      ]
  }
  
  try:
    if not is_torch_available():
      raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
    pass
  else:
    SCREAMING_SNAKE_CASE_     				=   [
        'SWITCH_TRANSFORMERS_PRETRAINED_MODEL_ARCHIVE_LIST',
        'SwitchTransformersEncoderModel',
        'SwitchTransformersForConditionalGeneration',
        'SwitchTransformersModel',
        'SwitchTransformersPreTrainedModel',
        'SwitchTransformersTop1Router',
        'SwitchTransformersSparseMLP',
    ]
  
  
  if TYPE_CHECKING:
    from .configuration_switch_transformers import (
        SWITCH_TRANSFORMERS_PRETRAINED_CONFIG_ARCHIVE_MAP,
        SwitchTransformersConfig,
        SwitchTransformersOnnxConfig,
    )
  
    try:
      if not is_torch_available():
        raise OptionalDependencyNotAvailable()
    except OptionalDependencyNotAvailable:
      pass
    else:
      from .modeling_switch_transformers import (
          SWITCH_TRANSFORMERS_PRETRAINED_MODEL_ARCHIVE_LIST,
          SwitchTransformersEncoderModel,
          SwitchTransformersForConditionalGeneration,
          SwitchTransformersModel,
          SwitchTransformersPreTrainedModel,
          SwitchTransformersSparseMLP,
          SwitchTransformersTopaRouter,
      )
  
  
  else:
    import sys
  
    SCREAMING_SNAKE_CASE_     				=   _LazyModule(__name__, globals()['__file__'], _import_structure, module_spec=__spec__)
  
  
style_context: 
  """simple docstring"""
  
  
  
  
  
  
  
  import warnings
  
  from .generation import FlaxGenerationMixin
  
  
  
  
  
  
  class     __a			(					lowerCAmelCase_			):
         # warning at import time
         warnings.warn(
             'Importing `FlaxGenerationMixin` from `src/transformers/generation_flax_utils.py` is deprecated and will '
             'be removed in Transformers v5. Import as `from transformers import FlaxGenerationMixin` instead.'				,	lowerCAmelCase_				,	)
  
  