'''simple docstring'''

from __future__ import annotations

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

__a:			int	       =       TypeVar("""T""")
__a:			int	       =       TypeVar("""U""")



class       UpperCAmelCase  (						Generic[T, U] ):





       '''simple docstring'''



       def __init__(						self     ,       __lowerCAmelCase     ,       __lowerCAmelCase			)  ->  List[Any]:
        lowercase__    :   List[Any]						= key
        lowercase__    :   Dict						= val
        lowercase__    :   DoubleLinkedListNode[T, U] | None						= None
        lowercase__    :   DoubleLinkedListNode[T, U] | None						= None


       def __repr__(						self			)  ->  str:
        return (
            F"""Node: key: {self.key}, val: {self.val}, """
            F"""has next: {bool(self.next			)}, has prev: {bool(self.prev			)}"""
        )



class       UpperCAmelCase  (						Generic[T, U] ):





       '''simple docstring'''



       def __init__(						self			)  ->  None:
        lowercase__    :   DoubleLinkedListNode[T, U]						= DoubleLinkedListNode(__lowerCAmelCase     ,       __lowerCAmelCase			)
        lowercase__    :   DoubleLinkedListNode[T, U]						= DoubleLinkedListNode(__lowerCAmelCase     ,       __lowerCAmelCase			)
        lowercase__			,							lowercase__    :   List[Any]						= self.rear, self.head

       def __repr__(						self			)  ->  str:
        lowercase__    :   Dict						= ['''DoubleLinkedList''']
        lowercase__    :   str						= self.head
        while node.next is not None:
         rep.append(str(__lowerCAmelCase			)			)
         lowercase__    :   Optional[Any]						= node.next
        rep.append(str(self.rear			)			)
        return ",\n    ".join(__lowerCAmelCase			)

       def _lowerCAmelCase(						self     ,       __lowerCAmelCase			)  ->  None:
        lowercase__    :   List[Any]						= self.rear.prev

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

        lowercase__    :   Any						= node
        lowercase__    :   Union[str, Any]						= previous
        lowercase__    :   Dict						= node
        lowercase__    :   List[Any]						= self.rear


       def _lowerCAmelCase(						self     ,       __lowerCAmelCase			)  ->  DoubleLinkedListNode[T, U] | None:

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

        lowercase__    :   Optional[Any]						= node.next
        lowercase__    :   List[Any]						= node.prev
        lowercase__    :   List[Any]						= None
        lowercase__    :   Optional[Any]						= None
        return node



class       UpperCAmelCase  (						Generic[T, U] ):





       '''simple docstring'''



       SCREAMING_SNAKE_CASE 		=   {}

       def __init__(						self     ,       __lowerCAmelCase			)  ->  Tuple:
        lowercase__    :   DoubleLinkedList[T, U]						= DoubleLinkedList()
        lowercase__    :   Optional[Any]						= capacity
        lowercase__    :   int						= 0
        lowercase__    :   Union[str, Any]						= 0
        lowercase__    :   Dict						= 0
        lowercase__    :   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     ,       __lowerCAmelCase			)  ->  bool:
        return key in self.cache

       def _lowerCAmelCase(						self     ,       __lowerCAmelCase			)  ->  U | None:
        # Note: pythonic interface would throw KeyError rather than return None

        if key in self.cache:
         self.hits += 1
         lowercase__    :   DoubleLinkedListNode[T, U]						= self.cache[key]
         lowercase__    :   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 _lowerCAmelCase(						self     ,       __lowerCAmelCase     ,       __lowerCAmelCase			)  ->  None:

        if key not in self.cache:
         if self.num_keys >= self.capacity:
          # delete first node (oldest) when over capacity
          lowercase__    :   List[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
          )  # node guaranteed to be in list assert node.key is not None

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

        else:
         # bump node to the end of the list, update value
         lowercase__    :   int						= self.list.remove(self.cache[key]			)
         assert node is not None  # node guaranteed to be in list
         lowercase__    :   Any						= value
         self.list.add(__lowerCAmelCase			)


       @classmethod
       def _lowerCAmelCase(						cls     ,       __lowerCAmelCase = 128			)  ->  Callable[[Callable[[T], U]], Callable[..., U]]:

        def cache_decorator_inner(__lowerCAmelCase			) -> Callable[..., U]:
         def cache_decorator_wrapper(*__lowerCAmelCase			) -> U:
          if func not in cls.decorator_function_to_instance_map:
           lowercase__    :   str						= LRUCache(__lowerCAmelCase			)

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

         def cache_info() -> LRUCache[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()


'''simple docstring'''

import re

from filelock import FileLock


try:
  import nltk

  __a:			Tuple	       =       True
except (ImportError, ModuleNotFoundError):
  __a:			List[Any]	       =       False

if NLTK_AVAILABLE:
  with FileLock(""".lock""") as lock:
    nltk.download("""punkt""", quiet=True)
def       __UpperCamelCase	(       UpperCAmelCase					):
 re.sub('''<n>'''		,					''''''		,					UpperCAmelCase					)  # remove pegasus newline char
 assert NLTK_AVAILABLE, "nltk must be installed to separate newlines between sentences. (pip install nltk)"
 return "\n".join(nltk.sent_tokenize(UpperCAmelCase					)					)

