code: 
  """simple docstring"""
  
  
  
  
  
  import argparse
  import os
  import re
  
  
  # All paths are set with the intent you should run this script from the root of the repo with the command
  # python utils/check_dummies.py
  _a	 =							'src/transformers'
  
  # Matches is_xxx_available()
  _a	 =							re.compile(R'is\_([a-z_]*)_available()')
  # Matches from xxx import bla
  _a	 =							re.compile(R'\s+from\s+\S*\s+import\s+([^\(\s].*)\n')
  _a	 =							re.compile(R'^\s+if\s+not\s+\(?is\_[a-z_]*\_available\(\)')
  
  
  _a	 =							'\n{0} = None\n'
  
  _a	 =							'\nclass {0}(metaclass=DummyObject):\n    _backends = {1}\n\n    def __init__(self, *args, **kwargs):\n        requires_backends(self, {1})\n'
  
  
  _a	 =							'\ndef {0}(*args, **kwargs):\n    requires_backends({0}, {1})\n'
  
  
  
  
  
  
  
  def 			__a  (	__lowerCamelCase						):
     if _re_test_backend.search(__lowerCamelCase						) is None:
        return None
     UpperCAmelCase_      :      Any      =					[b[0] for b in _re_backend.findall(__lowerCamelCase						)]
     backends.sort()
     return "_and_".join(__lowerCamelCase						)
  
  
  
  
  
  
  
  def 			__a  (	):
     with open(os.path.join(__lowerCamelCase,	"__init__.py"						),	"r",	encoding="utf-8",	newline="\n"						) as f:
        UpperCAmelCase_      :      List[Any]      =					f.readlines()
  
     # Get to the point we do the actual imports for type checking
     UpperCAmelCase_      :      int      =					0
     while not lines[line_index].startswith("if TYPE_CHECKING"						):
        line_index += 1
  
     UpperCAmelCase_      :      int      =					{}
     # Go through the end of the file
     while line_index < len(__lowerCamelCase						):
        # If the line is an if is_backend_available, we grab all objects associated.
        UpperCAmelCase_      :      Optional[int]      =					find_backend(lines[line_index]						)
        if backend is not None:
           while not lines[line_index].startswith("    else:"						):
              line_index += 1
           line_index += 1
  
           UpperCAmelCase_      :      Dict      =					[]
           # Until we unindent, add backend objects to the list
           while len(lines[line_index]						) <= 1 or lines[line_index].startswith(" " * 8						):
              UpperCAmelCase_      :      Union[str, Any]      =					lines[line_index]
              UpperCAmelCase_      :      Optional[int]      =					_re_single_line_import.search(__lowerCamelCase						)
              if single_line_import_search is not None:
                 objects.extend(single_line_import_search.groups()[0].split(", "						)						)
              elif line.startswith(" " * 12						):
                 objects.append(line[12:-2]						)
              line_index += 1
  
           UpperCAmelCase_      :      List[Any]      =					objects
        else:
           line_index += 1
  
     return backend_specific_objects
  
  
  
  
  
  
  
  def 			__a  (	__lowerCamelCase,	__lowerCamelCase						):
     if name.isupper():
        return DUMMY_CONSTANT.format(__lowerCamelCase						)
     elif name.islower():
        return DUMMY_FUNCTION.format(__lowerCamelCase,	__lowerCamelCase						)
     else:
        return DUMMY_CLASS.format(__lowerCamelCase,	__lowerCamelCase						)
  
  
  
  
  
  
  
  def 			__a  (	__lowerCamelCase=None						):
     if backend_specific_objects is None:
        UpperCAmelCase_      :      Any      =					read_init()
     # For special correspondence backend to module name as used in the function requires_modulename
     UpperCAmelCase_      :      Optional[Any]      =					{}
  
     for backend, objects in backend_specific_objects.items():
        UpperCAmelCase_      :      int      =					"[" + ", ".join(f"""\"{b}\"""" for b in backend.split("_and_"						)						) + "]"
        UpperCAmelCase_      :      Tuple      =					"# This file is autogenerated by the command `make fix-copies`, do not edit.\n"
        dummy_file += "from ..utils import DummyObject, requires_backends\n\n"
        dummy_file += "\n".join([create_dummy_object(__lowerCamelCase,	__lowerCamelCase						) for o in objects]						)
        UpperCAmelCase_      :      List[str]      =					dummy_file
  
     return dummy_files
  
  
  
  
  
  
  
  def 			__a  (	__lowerCamelCase=False						):
     UpperCAmelCase_      :      List[str]      =					create_dummy_files()
     # For special correspondence backend to shortcut as used in utils/dummy_xxx_objects.py
     UpperCAmelCase_      :      Union[str, Any]      =					{"torch": "pt"}
  
     # Locate actual dummy modules and read their content.
     UpperCAmelCase_      :      int      =					os.path.join(__lowerCamelCase,	"utils"						)
     UpperCAmelCase_      :      Any      =					{
         backend: os.path.join(__lowerCamelCase,	f"""dummy_{short_names.get(__lowerCamelCase,	__lowerCamelCase						)}_objects.py"""						)
         for backend in dummy_files.keys()
     }
  
     UpperCAmelCase_      :      List[str]      =					{}
     for backend, file_path in dummy_file_paths.items():
        if os.path.isfile(__lowerCamelCase						):
           with open(__lowerCamelCase,	"r",	encoding="utf-8",	newline="\n"						) as f:
              UpperCAmelCase_      :      Any      =					f.read()
        else:
           UpperCAmelCase_      :      Dict      =					""
  
     for backend in dummy_files.keys():
        if dummy_files[backend] != actual_dummies[backend]:
           if overwrite:
              print(
                  f"""Updating transformers.utils.dummy_{short_names.get(__lowerCamelCase,	__lowerCamelCase						)}_objects.py as the main """
                  "__init__ has new objects."						)
              with open(dummy_file_paths[backend],	"w",	encoding="utf-8",	newline="\n"						) as f:
                 f.write(dummy_files[backend]						)
           else:
              raise ValueError(
                  "The main __init__ has objects that are not present in "
                  f"""transformers.utils.dummy_{short_names.get(__lowerCamelCase,	__lowerCamelCase						)}_objects.py. Run `make fix-copies` """
                  "to fix this."						)
  
  
  if __name__ == "__main__":
      _a	 =							argparse.ArgumentParser()
      parser.add_argument('--fix_and_overwrite', action='store_true', help='Whether to fix inconsistencies.')
      _a	 =							parser.parse_args()
  
      check_dummies(args.fix_and_overwrite)
  
  
  
style_context: 
  """simple docstring"""
  
  
  
  
  
  from __future__ import annotations
  
  from typing import Any
  
  
  class A_			:
  
  
  
  
    '''simple docstring'''
  
  
  
  
  
  
  
    def __init__(	self       ,     lowercase_       ,     lowercase_						):  # noqa: A002
  
       """simple docstring"""
       UpperCAmelCase_      :      Optional[Any]      =					item
       UpperCAmelCase_      :      Optional[Any]      =					next
  
  
  
  
  class A_			:
  
  
  
  
    '''simple docstring'''
  
  
  
  
  
  
  
    def __init__(	self						):
  
       """simple docstring"""
       UpperCAmelCase_      :      Node | None      =					None
       UpperCAmelCase_      :      Optional[int]      =					0
  
  
  
  
  
  
  
    def  UpperCamelCase__      (	self       ,     lowercase_						):
  
       """simple docstring"""
       UpperCAmelCase_      :      int      =					Node(lowercase_       ,     self.head						)
       self.size += 1
  
  
  
  
  
  
  
    def  UpperCamelCase__      (	self						):
  
       """simple docstring"""
       # Switched 'self.is_empty()' to 'self.head is None'
       # because mypy was considering the possibility that 'self.head'
       # can be None in below else part and giving error
       if self.head is None:
          return None
       else:
          UpperCAmelCase_      :      int      =					self.head.item
          UpperCAmelCase_      :      str      =					self.head.next
          self.size -= 1
          return item
  
  
  
  
  
  
  
    def  UpperCamelCase__      (	self						):
  
       """simple docstring"""
       return self.head is None
  
  
  
  
  
  
  
    def __str__(	self						):
  
       """simple docstring"""
       if self.is_empty():
          return ""
       else:
          UpperCAmelCase_      :      str      =					self.head
          UpperCAmelCase_      :      str      =					""
          UpperCAmelCase_      :      list[str]      =					[]
          while iterate:
             item_list.append(str(iterate.item						)						)
             UpperCAmelCase_      :      Tuple      =					iterate.next
  
          UpperCAmelCase_      :      Optional[Any]      =					" --> ".join(lowercase_						)
  
          return item_str
  
  
  
  
  
  
  
    def __len__(	self						):
  
       """simple docstring"""
       return self.size
  
  
  