


from __future__ import annotations

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

__UpperCamelCase							:							Dict    							=					TypeVar("T")
__UpperCamelCase							:							int    							=					TypeVar("U")

class    __magic_name__						(  Generic[T, U]):


     def __init__(   self				:  Any				,						lowerCamelCase__				:  T | None				,						lowerCamelCase__				:  U | None      )	->   List[Any]:





      '''simple docstring'''






      UpperCamelCase__       :     List[Any] 							= key
      UpperCamelCase__       :     Union[str, Any] 							= val
      UpperCamelCase__       :     int 							= 0
      UpperCamelCase__       :     DoubleLinkedListNode[T, U] | None 							= None
      UpperCamelCase__       :     DoubleLinkedListNode[T, U] | None 							= None


     def __repr__(   self				:  Dict      )	->   str:





      '''simple docstring'''






      return "Node: key: {}, val: {}, freq: {}, has next: {}, has prev: {}".format(
          self.key				,						self.val				,						self.freq				,						self.next is not None				,						self.prev is not None      )



class    __magic_name__						(  Generic[T, U]):


     def __init__(   self				:  Tuple      )	->   None:





      '''simple docstring'''






      UpperCamelCase__       :     DoubleLinkedListNode[T, U] 							= DoubleLinkedListNode(lowerCamelCase__				,						lowerCamelCase__      )
      UpperCamelCase__       :     DoubleLinkedListNode[T, U] 							= DoubleLinkedListNode(lowerCamelCase__				,						lowerCamelCase__      )
      UpperCamelCase__							,					UpperCamelCase__       :     Dict 							= self.rear, self.head


     def __repr__(   self				:  List[str]      )	->   str:





      '''simple docstring'''






      UpperCamelCase__       :     Dict 							= ['''DoubleLinkedList''']
      UpperCamelCase__       :     Tuple 							= self.head
      while node.next is not None:
       rep.append(str(lowerCamelCase__      )      )
       UpperCamelCase__       :     Tuple 							= node.next
      rep.append(str(self.rear      )      )
      return ",\n    ".join(lowerCamelCase__      )


     def   UpperCAmelCase__						(   self				:  List[Any]				,						lowerCamelCase__				:  DoubleLinkedListNode[T, U]      )	->   None:





      '''simple docstring'''






      UpperCamelCase__       :     List[Any] 							= self.rear.prev

      # All nodes other than self.head are guaranteed to have non-None previous
      assert previous is not None

      UpperCamelCase__       :     List[str] 							= node
      UpperCamelCase__       :     Optional[int] 							= previous
      UpperCamelCase__       :     Dict 							= node
      UpperCamelCase__       :     List[str] 							= self.rear
      node.freq += 1
      self._position_node(lowerCamelCase__      )


     def   UpperCAmelCase__						(   self				:  int				,						lowerCamelCase__				:  DoubleLinkedListNode[T, U]      )	->   None:





      '''simple docstring'''






      while node.prev is not None and node.prev.freq > node.freq:
       # swap node with previous node
       UpperCamelCase__       :     List[Any] 							= node.prev

       UpperCamelCase__       :     Optional[int] 							= previous_node.prev
       UpperCamelCase__       :     Any 							= node.prev
       UpperCamelCase__       :     Any 							= previous_node
       UpperCamelCase__       :     Any 							= node


     def   UpperCAmelCase__						(   self				:  Union[str, Any]				,						lowerCamelCase__				:  DoubleLinkedListNode[T, U]      )	->   DoubleLinkedListNode[T, U] | None:





      '''simple docstring'''






      if node.prev is None or node.next is None:
       return None

      UpperCamelCase__       :     Dict 							= node.next
      UpperCamelCase__       :     Dict 							= node.prev
      UpperCamelCase__       :     Union[str, Any] 							= None
      UpperCamelCase__       :     Tuple 							= None
      return node



class    __magic_name__						(  Generic[T, U]):
     A:		dict[Callable[[T], U], LFUCache[T, U]]								=   {}


     def __init__(   self				:  Optional[int]				,						lowerCamelCase__				:  int      )	->   int:





      '''simple docstring'''






      UpperCamelCase__       :     DoubleLinkedList[T, U] 							= DoubleLinkedList()
      UpperCamelCase__       :     List[Any] 							= capacity
      UpperCamelCase__       :     Any 							= 0
      UpperCamelCase__       :     Optional[int] 							= 0
      UpperCamelCase__       :     List[Any] 							= 0
      UpperCamelCase__       :     dict[T, DoubleLinkedListNode[T, U]] 							= {}


     def __repr__(   self				:  List[str]      )	->   str:





      '''simple docstring'''






      return (
          F"CacheInfo(hits={self.hits}, misses={self.miss}, "
          F"capacity={self.capacity}, current_size={self.num_keys})"
      )


     def __contains__(   self				:  List[str]				,						lowerCamelCase__				:  T      )	->   bool:





      '''simple docstring'''






      return key in self.cache


     def   UpperCAmelCase__						(   self				:  Any				,						lowerCamelCase__				:  T      )	->   U | None:





      '''simple docstring'''






      if key in self.cache:
       self.hits += 1
       UpperCamelCase__       :     DoubleLinkedListNode[T, U] 							= self.cache[key]
       UpperCamelCase__       :     Union[str, Any] 							= self.list.remove(self.cache[key]      )
       assert node == value_node

       # node is guaranteed not None because it is in self.cache
       assert node is not None
       self.list.add(lowerCamelCase__      )
       return node.val
      self.miss += 1
      return None


     def   UpperCAmelCase__						(   self				:  Any				,						lowerCamelCase__				:  T				,						lowerCamelCase__				:  U      )	->   None:





      '''simple docstring'''






      if key not in self.cache:
       if self.num_keys >= self.capacity:
        # delete first node when over capacity
        UpperCamelCase__       :     Any 							= self.list.head.next

        # guaranteed to have a non-None first node when num_keys > 0
        # explain to type checker via assertions
        assert first_node is not None
        assert first_node.key is not None
        assert self.list.remove(lowerCamelCase__      ) is not None
        # first_node guaranteed to be in list

        del self.cache[first_node.key]
        self.num_keys -= 1
       UpperCamelCase__       :     int 							= DoubleLinkedListNode(lowerCamelCase__				,						lowerCamelCase__      )
       self.list.add(self.cache[key]      )
       self.num_keys += 1

      else:
       UpperCamelCase__       :     Optional[int] 							= self.list.remove(self.cache[key]      )
       assert node is not None  # node guaranteed to be in list
       UpperCamelCase__       :     Any 							= value
       self.list.add(lowerCamelCase__      )


     @classmethod
     def   UpperCAmelCase__						(   cls				:  type[LFUCache[T, U]]				,						lowerCamelCase__				:  int = 128      )	->   Callable[[Callable[[T], U]], Callable[..., U]]:





      '''simple docstring'''






      def cache_decorator_inner(lowerCamelCase__				:  Callable[[T], U]      ) -> Callable[..., U]:
       def cache_decorator_wrapper(*lowerCamelCase__				:  T      ) -> U:
        if func not in cls.decorator_function_to_instance_map:
         UpperCamelCase__       :     Tuple 							= LFUCache(lowerCamelCase__      )

        UpperCamelCase__       :     List[str] 							= cls.decorator_function_to_instance_map[func].get(args[0]      )
        if result is None:
         UpperCamelCase__       :     Any 							= func(*lowerCamelCase__      )
         cls.decorator_function_to_instance_map[func].put(args[0]				,						lowerCamelCase__      )
        return result

       def cache_info() -> LFUCache[T, U]:
        return cls.decorator_function_to_instance_map[func]

       setattr(lowerCamelCase__				,						'''cache_info'''				,						lowerCamelCase__      )  # noqa: B010

       return cache_decorator_wrapper

      return cache_decorator_inner


if __name__ == "__main__":
       import doctest

       doctest.testmod()






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[Any]    							=					"src/transformers"

# Matches is_xxx_available()
__UpperCamelCase							:							str    							=					re.compile(r"is\_([a-z_]*)_available()")
# Matches from xxx import bla
__UpperCamelCase							:							Union[str, Any]    							=					re.compile(r"\s+from\s+\S*\s+import\s+([^\(\s].*)\n")
__UpperCamelCase							:							Dict    							=					re.compile(r"^\s+if\s+not\s+\(?is\_[a-z_]*\_available\(\)")


__UpperCamelCase							:							Any    							=					"\n{0} = None\n"

__UpperCamelCase							:							Tuple    							=					"\nclass {0}(metaclass=DummyObject):\n    _backends = {1}\n\n    def __init__(self, *args, **kwargs):\n        requires_backends(self, {1})\n"


__UpperCamelCase							:							Optional[Any]    							=					"\ndef {0}(*args, **kwargs):\n    requires_backends({0}, {1})\n"

def       _a	(					SCREAMING_SNAKE_CASE						:					str  ):







 """simple docstring"""



 if _re_test_backend.search(SCREAMING_SNAKE_CASE  ) is None:
  return None
 UpperCamelCase__       :     List[str] 							= [b[0] for b in _re_backend.findall(SCREAMING_SNAKE_CASE  )]
 backends.sort()
 return "_and_".join(SCREAMING_SNAKE_CASE  )

def       _a	(					):







 """simple docstring"""



 with open(os.path.join(SCREAMING_SNAKE_CASE     ,			'''__init__.py'''  )     ,			'''r'''     ,			encoding='''utf-8'''     ,			newline='''\n'''  ) as f:
  UpperCamelCase__       :     Union[str, 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__       :     Optional[Any] 							= {}
 # Go through the end of the file
 while line_index < len(SCREAMING_SNAKE_CASE  ):
  # If the line is an if is_backend_available, we grab all objects associated.
  UpperCamelCase__       :     Any 							= find_backend(lines[line_index]  )
  if backend is not None:
   while not lines[line_index].startswith('''    else:'''  ):
    line_index += 1
   line_index += 1

   UpperCamelCase__       :     List[str] 							= []
   # Until we unindent, add backend objects to the list
   while len(lines[line_index]  ) <= 1 or lines[line_index].startswith(''' ''' * 8  ):
    UpperCamelCase__       :     str 							= lines[line_index]
    UpperCamelCase__       :     Union[str, Any] 							= _re_single_line_import.search(SCREAMING_SNAKE_CASE  )
    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       _a	(					SCREAMING_SNAKE_CASE						:					str     ,			SCREAMING_SNAKE_CASE						:					List[str]  ):







 """simple docstring"""



 if name.isupper():
  return DUMMY_CONSTANT.format(SCREAMING_SNAKE_CASE  )
 elif name.islower():
  return DUMMY_FUNCTION.format(SCREAMING_SNAKE_CASE     ,			SCREAMING_SNAKE_CASE  )
 else:
  return DUMMY_CLASS.format(SCREAMING_SNAKE_CASE     ,			SCREAMING_SNAKE_CASE  )

def       _a	(					SCREAMING_SNAKE_CASE						:					Dict=None  ):







 """simple docstring"""



 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__       :     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(SCREAMING_SNAKE_CASE     ,			SCREAMING_SNAKE_CASE  ) for o in objects]  )
  UpperCamelCase__       :     List[str] 							= dummy_file

 return dummy_files

def       _a	(					SCREAMING_SNAKE_CASE						:					Union[str, Any]=False  ):







 """simple docstring"""



 UpperCamelCase__       :     Dict 							= create_dummy_files()
 # For special correspondence backend to shortcut as used in utils/dummy_xxx_objects.py
 UpperCamelCase__       :     Tuple 							= {'''torch''': '''pt'''}

 # Locate actual dummy modules and read their content.
 UpperCamelCase__       :     Optional[Any] 							= os.path.join(SCREAMING_SNAKE_CASE     ,			'''utils'''  )
 UpperCamelCase__       :     int 							= {
     backend: os.path.join(SCREAMING_SNAKE_CASE     ,			F"dummy_{short_names.get(SCREAMING_SNAKE_CASE     ,			SCREAMING_SNAKE_CASE  )}_objects.py"  )
     for backend in dummy_files.keys()
 }

 UpperCamelCase__       :     Optional[Any] 							= {}
 for backend, file_path in dummy_file_paths.items():
  if os.path.isfile(SCREAMING_SNAKE_CASE  ):
   with open(SCREAMING_SNAKE_CASE     ,			'''r'''     ,			encoding='''utf-8'''     ,			newline='''\n'''  ) as f:
    UpperCamelCase__       :     List[Any] 							= f.read()
  else:
   UpperCamelCase__       :     List[Any] 							= ''''''

 for backend in dummy_files.keys():
  if dummy_files[backend] != actual_dummies[backend]:
   if overwrite:
    print(
        F"Updating transformers.utils.dummy_{short_names.get(SCREAMING_SNAKE_CASE     ,			SCREAMING_SNAKE_CASE  )}_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(SCREAMING_SNAKE_CASE     ,			SCREAMING_SNAKE_CASE  )}_objects.py. Run `make fix-copies` "
        '''to fix this.'''  )


if __name__ == "__main__":
       __UpperCamelCase							:							Optional[int]    							=					argparse.ArgumentParser()
       parser.add_argument("--fix_and_overwrite", action="store_true", help="Whether to fix inconsistencies.")
       __UpperCamelCase							:							str    							=					parser.parse_args()

       check_dummies(args.fix_and_overwrite)


