
"""simple docstring"""







from __future__ import annotations

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

lowercase_						    =					TypeVar("T")
lowercase_						    =					TypeVar("U")



class 		UpperCAmelCase_	(Generic[T, U]						):
 """simple docstring"""




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



      """simple docstring"""

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






 def __repr__( self       : List[str] )->					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 		UpperCAmelCase_	(Generic[T, U]						):
 """simple docstring"""




 def __init__( self       : Dict )->					None:



      """simple docstring"""

      UpperCAmelCase_						:    DoubleLinkedListNode[T, U]    					=  DoubleLinkedListNode(a_     ,   a_ )
      UpperCAmelCase_						:    DoubleLinkedListNode[T, U]    					=  DoubleLinkedListNode(a_     ,   a_ )
      UpperCAmelCase_					,UpperCAmelCase_						:    int    					=  self.rear, self.head




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



      """simple docstring"""

      UpperCAmelCase_						:    Optional[Any]    					=  ["""DoubleLinkedList"""]
      UpperCAmelCase_						:    str    					=  self.head
      while node.next is not None:
           rep.append(str(a_ ) )
           UpperCAmelCase_						:    Optional[int]    					=  node.next
      rep.append(str(self.rear ) )
      return ",\n    ".join(a_ )




 def   a      ( self       : int     ,   a_       : DoubleLinkedListNode[T, U] )->					None:



      """simple docstring"""

      UpperCAmelCase_						:    Union[str, Any]    					=  self.rear.prev

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

      UpperCAmelCase_						:    Union[str, Any]    					=  node
      UpperCAmelCase_						:    List[Any]    					=  previous
      UpperCAmelCase_						:    Optional[int]    					=  node
      UpperCAmelCase_						:    Any    					=  self.rear
      node.freq += 1
      self._position_node(a_ )




 def   a      ( self       : str     ,   a_       : DoubleLinkedListNode[T, U] )->					None:



      """simple docstring"""

      while node.prev is not None and node.prev.freq > node.freq:
           # swap node with previous node
           UpperCAmelCase_						:    int    					=  node.prev

           UpperCAmelCase_						:    Union[str, Any]    					=  previous_node.prev
           UpperCAmelCase_						:    Optional[int]    					=  node.prev
           UpperCAmelCase_						:    int    					=  previous_node
           UpperCAmelCase_						:    Optional[Any]    					=  node






 def   a      ( self       : Optional[int]     ,   a_       : DoubleLinkedListNode[T, U] )->					DoubleLinkedListNode[T, U] | None:



      """simple docstring"""

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

      UpperCAmelCase_						:    Optional[int]    					=  node.next
      UpperCAmelCase_						:    Optional[Any]    					=  node.prev
      UpperCAmelCase_						:    List[str]    					=  None
      UpperCAmelCase_						:    Tuple    					=  None
      return node



class 		UpperCAmelCase_	(Generic[T, U]						):
 """simple docstring"""




 UpperCamelCase_						:     dict[Callable[[T], U], LFUCache[T, U]]				   =    {}




 def __init__( self       : List[Any]     ,   a_       : int )->					Optional[Any]:



      """simple docstring"""

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




 def __repr__( self       : 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       : Dict     ,   a_       : T )->					bool:



      """simple docstring"""

      return key in self.cache




 def   a      ( self       : Union[str, Any]     ,   a_       : T )->					U | None:



      """simple docstring"""

      if key in self.cache:
           self.hits += 1
           UpperCAmelCase_						:    DoubleLinkedListNode[T, U]    					=  self.cache[key]
           UpperCAmelCase_						:    int    					=  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(a_ )
           return node.val
      self.miss += 1
      return None




 def   a      ( self       : List[str]     ,   a_       : T     ,   a_       : U )->					None:



      """simple docstring"""

      if key not in self.cache:
           if self.num_keys >= self.capacity:
                # delete first node when over capacity
                UpperCAmelCase_						:    Optional[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(a_ ) is not None
                # first_node guaranteed to be in list

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

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






 @classmethod
 def   a      ( cls       : type[LFUCache[T, U]]     ,   a_       : int = 1_28 )->					Callable[[Callable[[T], U]], Callable[..., U]]:



      """simple docstring"""

      def cache_decorator_inner(a_       : Callable[[T], U] ) -> Callable[..., U]:
           def cache_decorator_wrapper(*a_       : T ) -> U:
                if func not in cls.decorator_function_to_instance_map:
                     UpperCAmelCase_						:    Union[str, Any]    					=  LFUCache(a_ )

                UpperCAmelCase_						:    List[Any]    					=  cls.decorator_function_to_instance_map[func].get(args[0] )
                if result is None:
                     UpperCAmelCase_						:    Optional[Any]    					=  func(*a_ )
                     cls.decorator_function_to_instance_map[func].put(args[0]     ,   a_ )
                return result

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

           setattr(a_     ,   """cache_info"""     ,   a_ )  # noqa: B010

           return cache_decorator_wrapper

      return cache_decorator_inner


if __name__ == "__main__":
       import doctest

       doctest.testmod()



"""simple docstring"""







import warnings

from .generation import FlaxGenerationMixin



class 		UpperCAmelCase_	(lowerCamelCase_						):
 """simple docstring"""




 warnings.warn(
     """Importing `FlaxGenerationMixin` from `src/transformers/generation_flax_utils.py` is deprecated and will """
     """be removed in Transformers v5. Import as `from transformers import FlaxGenerationMixin` instead."""  , lowerCamelCase_  , )

