


"""simple docstring"""






from __future__ import annotations

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

SCREAMING_SNAKE_CASE__				:  Dict						= TypeVar("T")
SCREAMING_SNAKE_CASE__				:  Optional[int]						= TypeVar("U")


class 	A_       (     Generic[T, U]   ):





  """simple docstring"""

  def __init__(						self  ,					__UpperCAmelCase  ,					__UpperCAmelCase						)				->					Union[str, Any]:
     a   :	Optional[int]						=    key
     a   :	Tuple						=    val
     a   :	int						=    0
     a   :	DoubleLinkedListNode[T, U] | None						=    None
     a   :	DoubleLinkedListNode[T, U] | None						=    None






  def __repr__(						self						)				->					str:
     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 	A_       (     Generic[T, U]   ):





  """simple docstring"""

  def __init__(						self						)				->					None:
     a   :	DoubleLinkedListNode[T, U]						=    DoubleLinkedListNode(__UpperCAmelCase  ,					__UpperCAmelCase						)
     a   :	DoubleLinkedListNode[T, U]						=    DoubleLinkedListNode(__UpperCAmelCase  ,					__UpperCAmelCase						)
     a	, a   :	str						=    self.rear, self.head
  def __repr__(						self						)				->					str:
     a   :	Any						=    ['DoubleLinkedList']
     a   :	Optional[Any]						=    self.head
     while node.next is not None:
        rep.append(str(__UpperCAmelCase						)						)
        a   :	List[str]						=    node.next
     rep.append(str(self.rear						)						)
     return ",\n    ".join(__UpperCAmelCase						)
  def 							lowercase_     (						self  ,					__UpperCAmelCase						)				->					None:
     a   :	Any						=    self.rear.prev

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

     a   :	Dict						=    node
     a   :	int						=    previous
     a   :	Optional[Any]						=    node
     a   :	Optional[int]						=    self.rear
     node.freq += 1
     self._position_node(__UpperCAmelCase						)
  def 							lowercase_     (						self  ,					__UpperCAmelCase						)				->					None:

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

        a   :	List[Any]						=    previous_node.prev
        a   :	str						=    node.prev
        a   :	List[str]						=    previous_node
        a   :	Optional[int]						=    node






  def 							lowercase_     (						self  ,					__UpperCAmelCase						)				->					DoubleLinkedListNode[T, U] | None:

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

     a   :	Union[str, Any]						=    node.next
     a   :	Any						=    node.prev
     a   :	List[str]						=    None
     a   :	Optional[Any]						=    None
     return node



class 	A_       (     Generic[T, U]   ):





  """simple docstring"""

  lowercase		:	dict[Callable[[T], U], LFUCache[T, U]]   =						{}
  def __init__(						self  ,					__UpperCAmelCase						)				->					Optional[int]:
     a   :	DoubleLinkedList[T, U]						=    DoubleLinkedList()
     a   :	Any						=    capacity
     a   :	Optional[Any]						=    0
     a   :	Dict						=    0
     a   :	Dict						=    0
     a   :	dict[T, DoubleLinkedListNode[T, U]]						=    {}
  def __repr__(						self						)				->					str:
     return (
         f'CacheInfo(hits={self.hits}, misses={self.miss}, '
         f'capacity={self.capacity}, current_size={self.num_keys})'
     )
  def __contains__(						self  ,					__UpperCAmelCase						)				->					bool:
     return key in self.cache
  def 							lowercase_     (						self  ,					__UpperCAmelCase						)				->					U | None:

     if key in self.cache:
        self.hits += 1
        a   :	DoubleLinkedListNode[T, U]						=    self.cache[key]
        a   :	Tuple						=    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(__UpperCAmelCase						)
        return node.val
     self.miss += 1
     return None
  def 							lowercase_     (						self  ,					__UpperCAmelCase  ,					__UpperCAmelCase						)				->					None:

     if key not in self.cache:
        if self.num_keys >= self.capacity:
           # delete first node when over capacity
           a   :	Union[str, 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(__UpperCAmelCase						) is not None
           # first_node guaranteed to be in list

           del self.cache[first_node.key]
           self.num_keys -= 1
        a   :	Dict						=    DoubleLinkedListNode(__UpperCAmelCase  ,					__UpperCAmelCase						)
        self.list.add(self.cache[key]						)
        self.num_keys += 1

     else:
        a   :	List[str]						=    self.list.remove(self.cache[key]						)
        assert node is not None  # node guaranteed to be in list
        a   :	Tuple						=    value
        self.list.add(__UpperCAmelCase						)






  @classmethod
  def 							lowercase_     (						cls  ,					__UpperCAmelCase = 1_28						)				->					Callable[[Callable[[T], U]], Callable[..., U]]:

     def cache_decorator_inner(__UpperCAmelCase						) -> Callable[..., U]:
        def cache_decorator_wrapper(*__UpperCAmelCase						) -> U:
           if func not in cls.decorator_function_to_instance_map:
              a   :	Dict						=    LFUCache(__UpperCAmelCase						)

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

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

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

        return cache_decorator_wrapper

     return cache_decorator_inner


if __name__ == "__main__":
 import doctest

 doctest.testmod()









"""simple docstring"""






import unittest

from transformers import BlenderbotTokenizer, BlenderbotTokenizerFast
from transformers.utils import cached_property


class 	A_       (     unittest.TestCase   ):





  """simple docstring"""

  @cached_property
  def 							lowercase_     (						self						)				->					Optional[Any]:
     return BlenderbotTokenizer.from_pretrained('facebook/blenderbot-3B'						)
  @cached_property
  def 							lowercase_     (						self						)				->					Optional[int]:
     return BlenderbotTokenizerFast.from_pretrained('facebook/blenderbot-3B'						)
  def 							lowercase_     (						self						)				->					Union[str, Any]:
     a   :	List[Any]						=    self.tokenizer_ab
     a   :	int						=    ' I am a small frog.'
     a   :	Any						=    tok([src_text]  ,					padding=__UpperCAmelCase  ,					truncation=__UpperCAmelCase						)['input_ids']
     a   :	List[str]						=    tok.batch_decode(__UpperCAmelCase  ,					skip_special_tokens=__UpperCAmelCase  ,					clean_up_tokenization_spaces=__UpperCAmelCase						)[0]
     assert src_text == decoded
  def 							lowercase_     (						self						)				->					Optional[Any]:
     a   :	Optional[int]						=    self.rust_tokenizer_ab
     a   :	List[Any]						=    ' I am a small frog.'
     a   :	Union[str, Any]						=    tok([src_text]  ,					padding=__UpperCAmelCase  ,					truncation=__UpperCAmelCase						)['input_ids']
     a   :	Optional[Any]						=    tok.batch_decode(__UpperCAmelCase  ,					skip_special_tokens=__UpperCAmelCase  ,					clean_up_tokenization_spaces=__UpperCAmelCase						)[0]
     assert src_text == decoded
  def 							lowercase_     (						self						)				->					Tuple:
     assert self.tokenizer_ab.add_prefix_space
     assert self.tokenizer_ab([' Sam', 'Sam']						).input_ids == [[55_02, 2], [55_02, 2]]






  def 							lowercase_     (						self						)				->					Tuple:
     assert self.rust_tokenizer_ab.add_prefix_space
     assert self.rust_tokenizer_ab([' Sam', 'Sam']						).input_ids == [[55_02, 2], [55_02, 2]]





