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

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


lowercase__  :      int        =					{
    "configuration_graphormer": ["GRAPHORMER_PRETRAINED_CONFIG_ARCHIVE_MAP", "GraphormerConfig"],
}

try:
      if not is_torch_available():
            raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
      pass
else:
      lowercase__  :      List[str]        =					[
          "GRAPHORMER_PRETRAINED_MODEL_ARCHIVE_LIST",
          "GraphormerForGraphClassification",
          "GraphormerModel",
          "GraphormerPreTrainedModel",
      ]


if TYPE_CHECKING:
      from .configuration_graphormer import GRAPHORMER_PRETRAINED_CONFIG_ARCHIVE_MAP, GraphormerConfig

      try:
            if not is_torch_available():
                  raise OptionalDependencyNotAvailable()
      except OptionalDependencyNotAvailable:
            pass
      else:
            from .modeling_graphormer import (
                GRAPHORMER_PRETRAINED_MODEL_ARCHIVE_LIST,
                GraphormerForGraphClassification,
                GraphormerModel,
                GraphormerPreTrainedModel,
            )


else:
      import sys

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






'''simple docstring'''
from collections.abc import Callable



def  __lowerCamelCase       (      _UpperCamelCase  :  Callable[[float], float]							,    _UpperCamelCase  :  float							,    _UpperCamelCase  :  float					):


      '''simple docstring'''


      UpperCAmelCase_            =  a
      UpperCAmelCase_            =  b
      if function(_UpperCamelCase					) == 0:  # one of the a or b is a root for the function
            return a
      elif function(_UpperCamelCase					) == 0:
            return b
      elif (
          function(_UpperCamelCase					) * function(_UpperCamelCase					) > 0
      ):  # if none of these are root and they are both positive or negative,
            # then this algorithm can't find the root
            raise ValueError('''could not find root in given interval.'''					)
      else:
            UpperCAmelCase_            =  start + (end - start) / 2.0
            while abs(start - mid					) > 10**-7:  # until precisely equals to 10^-7
                  if function(_UpperCamelCase					) == 0:
                        return mid
                  elif function(_UpperCamelCase					) * function(_UpperCamelCase					) < 0:
                        UpperCAmelCase_            =  mid
                  else:
                        UpperCAmelCase_            =  mid
                  UpperCAmelCase_            =  start + (end - start) / 2.0
            return mid



def  __lowerCamelCase       (      _UpperCamelCase  :  float					):


      '''simple docstring'''


      return x**3 - 2 * x - 5


if __name__ == "__main__":
      print(bisection(f, 1, 1000))

      import doctest

      doctest.testmod()





