





from __future__ import annotations

from typing import Any





class 					lowerCAmelCase							:







  def __init__(			self  :Optional[Any]    ,							_lowercase  :Any    ,							_lowercase  :Any					):  # noqa: A002






     '''simple docstring'''





     lowercase__    =  item
     lowercase__    =  next





class 					lowerCAmelCase							:







  def __init__(			self  :Any					):






     '''simple docstring'''





     lowercase__    =  None
     lowercase__    =  0







  def   UpperCAmelCase     (			self  :int    ,							_lowercase  :Any					):






     '''simple docstring'''





     lowercase__    =  Node(_lowercase    ,							self.head					)
     self.size += 1







  def   UpperCAmelCase     (			self  :Dict					):






     '''simple docstring'''





     if self.head is None:
        return None
     else:
        lowercase__    =  self.head.item
        lowercase__    =  self.head.next
        self.size -= 1
        return item







  def   UpperCAmelCase     (			self  :List[Any]					):






     '''simple docstring'''





     return self.head is None







  def __str__(			self  :Optional[Any]					):






     '''simple docstring'''





     if self.is_empty():
        return ""
     else:
        lowercase__    =  self.head
        lowercase__    =  ""
        lowercase__    =  []
        while iterate:
           item_list.append(str(iterate.item					)					)
           lowercase__    =  iterate.next

        lowercase__    =  " --> ".join(_lowercase					)

        return item_str







  def __len__(			self  :Any					):






     '''simple docstring'''





     return self.size













from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available


_snake_case				= {"""configuration_bit""": ["""BIT_PRETRAINED_CONFIG_ARCHIVE_MAP""", """BitConfig""", """BitOnnxConfig"""]}

try:
  if not is_torch_available():
    raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
  pass
else:
  _snake_case				= [
      """BIT_PRETRAINED_MODEL_ARCHIVE_LIST""",
      """BitForImageClassification""",
      """BitModel""",
      """BitPreTrainedModel""",
      """BitBackbone""",
  ]


try:
  if not is_vision_available():
    raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
  pass
else:
  _snake_case				= ["""BitImageProcessor"""]


if TYPE_CHECKING:
  from .configuration_bit import BIT_PRETRAINED_CONFIG_ARCHIVE_MAP, BitConfig, BitOnnxConfig

  try:
    if not is_torch_available():
      raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
    pass
  else:
    from .modeling_bit import (
        BIT_PRETRAINED_MODEL_ARCHIVE_LIST,
        BitBackbone,
        BitForImageClassification,
        BitModel,
        BitPreTrainedModel,
    )

  try:
    if not is_vision_available():
      raise OptionalDependencyNotAvailable()
  except OptionalDependencyNotAvailable:
    pass
  else:
    from .image_processing_bit import BitImageProcessor

else:
  import sys

  _snake_case				= _LazyModule(__name__, globals()["""__file__"""], _import_structure)






