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
  _UpperCAmelCase   :      Optional[int] 						=  """src/transformers"""
  
  # Matches is_xxx_available()
  _UpperCAmelCase   :      Dict 						=  re.compile(R"""is\_([a-z_]*)_available()""")
  # Matches from xxx import bla
  _UpperCAmelCase   :      List[Any] 						=  re.compile(R"""\s+from\s+\S*\s+import\s+([^\(\s].*)\n""")
  _UpperCAmelCase   :      Tuple 						=  re.compile(R"""^\s+if\s+not\s+\(?is\_[a-z_]*\_available\(\)""")
  
  
  _UpperCAmelCase   :      List[Any] 						=  """
  {0} = None
  """
  
  _UpperCAmelCase   :      int 						=  """
  class {0}(metaclass=DummyObject):
      _backends = {1}
  
      def __init__(self, *args, **kwargs):
          requires_backends(self, {1})
  """
  
  
  _UpperCAmelCase   :      List[Any] 						=  """
  def {0}(*args, **kwargs):
      requires_backends({0}, {1})
  """
  
  
  
  
  
  
  
  def 						snake_case__	(      UpperCamelCase	) ->      Tuple:
  		if _re_test_backend.search(UpperCamelCase	) is None:
  				return None
  		_UpperCamelCase       : List[str]    =      [b[0] for b in _re_backend.findall(UpperCamelCase	)]
  		backends.sort()
  		return "_and_".join(UpperCamelCase	)
  
  
  
  
  
  
  
  def 						snake_case__	(      ) ->      Optional[int]:
  		with open(os.path.join(UpperCamelCase			,'''__init__.py'''	)			,'''r'''			,encoding='''utf-8'''			,newline='''\n'''	) as f:
  				_UpperCamelCase       : Tuple    =      f.readlines()
  
  		# Get to the point we do the actual imports for type checking
  		_UpperCamelCase       : List[str]    =      0
  		while not lines[line_index].startswith('''if TYPE_CHECKING'''	):
  				line_index += 1
  
  		_UpperCamelCase       : Union[str, Any]    =      {}
  		# Go through the end of the file
  		while line_index < len(UpperCamelCase	):
  				# If the line is an if is_backend_available, we grab all objects associated.
  				_UpperCamelCase       : List[str]    =      find_backend(lines[line_index]	)
  				if backend is not None:
  						while not lines[line_index].startswith('''    else:'''	):
  								line_index += 1
  						line_index += 1
  
  						_UpperCamelCase       : Optional[int]    =      []
  						# Until we unindent, add backend objects to the list
  						while len(lines[line_index]	) <= 1 or lines[line_index].startswith(''' ''' * 8	):
  								_UpperCamelCase       : Optional[int]    =      lines[line_index]
  								_UpperCamelCase       : Optional[Any]    =      _re_single_line_import.search(UpperCamelCase	)
  								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       : Optional[int]    =      objects
  				else:
  						line_index += 1
  
  		return backend_specific_objects
  
  
  
  
  
  
  
  def 						snake_case__	(      UpperCamelCase			,UpperCamelCase	) ->      Optional[int]:
  		if name.isupper():
  				return DUMMY_CONSTANT.format(UpperCamelCase	)
  		elif name.islower():
  				return DUMMY_FUNCTION.format(UpperCamelCase			,UpperCamelCase	)
  		else:
  				return DUMMY_CLASS.format(UpperCamelCase			,UpperCamelCase	)
  
  
  
  
  
  
  
  def 						snake_case__	(      UpperCamelCase=None	) ->      Union[str, Any]:
  		if backend_specific_objects is None:
  				_UpperCamelCase       : str    =      read_init()
  		# For special correspondence backend to module name as used in the function requires_modulename
  		_UpperCamelCase       : Union[str, Any]    =      {}
  
  		for backend, objects in backend_specific_objects.items():
  				_UpperCamelCase       : Any    =      '''[''' + ''', '''.join(f'''"{b}"''' for b in backend.split('''_and_'''	)	) + ''']'''
  				_UpperCamelCase       : Any    =      '''# 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(UpperCamelCase			,UpperCamelCase	) for o in objects]	)
  				_UpperCamelCase       : Optional[Any]    =      dummy_file
  
  		return dummy_files
  
  
  
  
  
  
  
  def 						snake_case__	(      UpperCamelCase=False	) ->      Union[str, Any]:
  		_UpperCamelCase       : int    =      create_dummy_files()
  		# For special correspondence backend to shortcut as used in utils/dummy_xxx_objects.py
  		_UpperCamelCase       : Dict    =      {'''torch''': '''pt'''}
  
  		# Locate actual dummy modules and read their content.
  		_UpperCamelCase       : Optional[Any]    =      os.path.join(UpperCamelCase			,'''utils'''	)
  		_UpperCamelCase       : str    =      {
  		    backend: os.path.join(UpperCamelCase			,f'''dummy_{short_names.get(UpperCamelCase			,UpperCamelCase	)}_objects.py'''	)
  		    for backend in dummy_files.keys()
  		}
  
  		_UpperCamelCase       : Dict    =      {}
  		for backend, file_path in dummy_file_paths.items():
  				if os.path.isfile(UpperCamelCase	):
  						with open(UpperCamelCase			,'''r'''			,encoding='''utf-8'''			,newline='''\n'''	) as f:
  								_UpperCamelCase       : List[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(UpperCamelCase			,UpperCamelCase	)}_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(UpperCamelCase			,UpperCamelCase	)}_objects.py. Run `make fix-copies` '''
  								    '''to fix this.'''	)
  
  
  if __name__ == "__main__":
  	_UpperCAmelCase   :      str 						=  argparse.ArgumentParser()
  	parser.add_argument("""--fix_and_overwrite""", action="""store_true""", help="""Whether to fix inconsistencies.""")
  	_UpperCAmelCase   :      List[Any] 						=  parser.parse_args()
  
  	check_dummies(args.fix_and_overwrite)
  
  
  
  
  
  
style_context: 
  '''simple docstring'''
  
  import os
  
  
  
  
  
  
  
  def 						snake_case__	(      ) ->      Tuple:
  		_UpperCamelCase       : Dict    =      os.path.dirname(os.path.realpath(UpperCamelCase	)	)
  		_UpperCamelCase       : str    =      os.path.join(UpperCamelCase			,'''triangle.txt'''	)
  
  		with open(UpperCamelCase	) as f:
  				_UpperCamelCase       : Optional[Any]    =      f.readlines()
  
  		_UpperCamelCase       : List[str]    =      [[int(UpperCamelCase	) for y in x.rstrip('''\r\n'''	).split(''' '''	)] for x in triangle]
  
  		for i in range(1			,len(UpperCamelCase	)	):
  				for j in range(len(a[i]	)	):
  						_UpperCamelCase       : str    =      a[i - 1][j] if j != len(a[i - 1]	) else 0
  						_UpperCamelCase       : Any    =      a[i - 1][j - 1] if j > 0 else 0
  						a[i][j] += max(UpperCamelCase			,UpperCamelCase	)
  		return max(a[-1]	)
  
  
  if __name__ == "__main__":
  	print(solution())
  
  
  
  
  
  