




'''simple docstring'''
from typing import TYPE_CHECKING

from ...utils import (
    OptionalDependencyNotAvailable,
    _LazyModule,
    is_flax_available,
    is_tf_available,
    is_tokenizers_available,
    is_torch_available,
)


A				: Optional[Any]					      =			{
    """configuration_bart""": ["""BART_PRETRAINED_CONFIG_ARCHIVE_MAP""", """BartConfig""", """BartOnnxConfig"""],
    """tokenization_bart""": ["""BartTokenizer"""],
}

try:
  if not is_tokenizers_available():
    raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
  pass
else:
  A				: List[str]					      =			["""BartTokenizerFast"""]

try:
  if not is_torch_available():
    raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
  pass
else:
  A				: Tuple					      =			[
      """BART_PRETRAINED_MODEL_ARCHIVE_LIST""",
      """BartForCausalLM""",
      """BartForConditionalGeneration""",
      """BartForQuestionAnswering""",
      """BartForSequenceClassification""",
      """BartModel""",
      """BartPretrainedModel""",
      """PretrainedBartModel""",
  ]

try:
  if not is_tf_available():
    raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
  pass
else:
  A				: Optional[int]					      =			[
      """TFBartForConditionalGeneration""",
      """TFBartForSequenceClassification""",
      """TFBartModel""",
      """TFBartPretrainedModel""",
  ]

try:
  if not is_flax_available():
    raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
  pass
else:
  A				: Union[str, Any]					      =			[
      """FlaxBartDecoderPreTrainedModel""",
      """FlaxBartForCausalLM""",
      """FlaxBartForConditionalGeneration""",
      """FlaxBartForQuestionAnswering""",
      """FlaxBartForSequenceClassification""",
      """FlaxBartModel""",
      """FlaxBartPreTrainedModel""",
  ]

if TYPE_CHECKING:
  from .configuration_bart import BART_PRETRAINED_CONFIG_ARCHIVE_MAP, BartConfig, BartOnnxConfig
  from .tokenization_bart import BartTokenizer

  try:
    if not is_tokenizers_available():
      raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
    pass
  else:
    from .tokenization_bart_fast import BartTokenizerFast

  try:
    if not is_torch_available():
      raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
    pass
  else:
    from .modeling_bart import (
        BART_PRETRAINED_MODEL_ARCHIVE_LIST,
        BartForCausalLM,
        BartForConditionalGeneration,
        BartForQuestionAnswering,
        BartForSequenceClassification,
        BartModel,
        BartPretrainedModel,
        PretrainedBartModel,
    )

  try:
    if not is_tf_available():
      raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
    pass
  else:
    from .modeling_tf_bart import (
        TFBartForConditionalGeneration,
        TFBartForSequenceClassification,
        TFBartModel,
        TFBartPretrainedModel,
    )

  try:
    if not is_flax_available():
      raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
    pass
  else:
    from .modeling_flax_bart import (
        FlaxBartDecoderPreTrainedModel,
        FlaxBartForCausalLM,
        FlaxBartForConditionalGeneration,
        FlaxBartForQuestionAnswering,
        FlaxBartForSequenceClassification,
        FlaxBartModel,
        FlaxBartPreTrainedModel,
    )

else:
  import sys

  A				: List[str]					      =			_LazyModule(__name__, globals()["""__file__"""], _import_structure, module_spec=__spec__)










'''simple docstring'''


def 					SCREAMING_SNAKE_CASE(   __lowercase	)			-> int:
     if not isinstance(__lowercase		,				__lowercase	):
          raise ValueError('''double_factorial() only accepts integral values'''	)
     if n < 0:
          raise ValueError('''double_factorial() not defined for negative values'''	)
     return 1 if n <= 1 else n * double_factorial(n - 2	)


if __name__ == "__main__":
     import doctest

     doctest.testmod()






