'''simple docstring'''





from collections.abc import Iterable
from typing import Generic, TypeVar

SCREAMING_SNAKE_CASE_:     List[str]  =TypeVar('_T')




class        __A      ( Generic[_T]	):



    def __init__(self    :    List[str]   ,			__a    :    List[Any] = None ):
         UpperCAmelCase_           =   list(iterable or [] )
         UpperCAmelCase_           =   []



    def __len__(self    :    Optional[Any] ):
         return len(self._stacka ) + len(self._stacka )



    def __repr__(self    :    int ):
         return f"""Queue({tuple(self._stacka[::-1] + self._stacka )})"""



    def 					_lowercase						(self    :    Union[str, Any]   ,			__a    :    Any ):
         self._stacka.append(a_ )






    def 					_lowercase						(self    :    Tuple ):
         UpperCAmelCase_           =   self._stacka.pop
         UpperCAmelCase_           =   self._stacka.append

         if not self._stacka:
              while self._stacka:
                   stacka_append(stacka_pop() )

         if not self._stacka:
              raise IndexError("Queue is empty" )
         return self._stacka.pop()


if __name__ == "__main__":
    from doctest import testmod

    testmod()








"""simple docstring"""
from ...utils import is_torch_available, is_transformers_available


if is_transformers_available() and is_torch_available():
			from .pipeline_vq_diffusion import LearnedClassifierFreeSamplingEmbeddings, VQDiffusionPipeline





