



from __future__ import annotations

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

__UpperCAmelCase						  =     TypeVar('''T''')
__UpperCAmelCase						  =     TypeVar('''U''')


class 	lowerCamelCase__ (		Generic[T, U]   ):


						def __init__( self						:  int      ,       _a						:  T | None      ,       _a						:  U | None			):
													a__:       Dict											=key
													a__:       str											=val
													a__:       int											=0
													a__:       DoubleLinkedListNode[T, U] | None											=None
													a__:       DoubleLinkedListNode[T, U] | None											=None







						def __repr__( self						:  List[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 	lowerCamelCase__ (		Generic[T, U]   ):


						def __init__( self						:  int			):
													a__:       DoubleLinkedListNode[T, U]											=DoubleLinkedListNode(_a      ,       _a			)
													a__:       DoubleLinkedListNode[T, U]											=DoubleLinkedListNode(_a      ,       _a			)
													a__							,			a__:       int											=self.rear, self.head


						def __repr__( self						:  Tuple			):
													a__:       Dict											=["DoubleLinkedList"]
													a__:       Any											=self.head
													while node.next is not None:
																				rep.append(str(_a			)			)
																				a__:       Union[str, Any]											=node.next
													rep.append(str(self.rear			)			)
													return ",\n    ".join(_a			)


						def   _lowerCamelCase			( self						:  Union[str, Any]      ,       _a						:  DoubleLinkedListNode[T, U]			):
													a__:       List[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__:       str											=previous
													a__:       Any											=node
													a__:       Any											=self.rear
													node.freq += 1
													self._position_node(_a			)


						def   _lowerCamelCase			( self						:  str      ,       _a						:  DoubleLinkedListNode[T, U]			):

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

																				a__:       str											=previous_node.prev
																				a__:       List[Any]											=node.prev
																				a__:       Optional[Any]											=previous_node
																				a__:       Tuple											=node







						def   _lowerCamelCase			( self						:  Dict      ,       _a						:  DoubleLinkedListNode[T, U]			):

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

													a__:       Optional[Any]											=node.next
													a__:       Dict											=node.prev
													a__:       Dict											=None
													a__:       str											=None
													return node


class 	lowerCamelCase__ (		Generic[T, U]   ):
						_lowerCAmelCase								= {}


						def __init__( self						:  List[str]      ,       _a						:  int			):
													a__:       DoubleLinkedList[T, U]											=DoubleLinkedList()
													a__:       int											=capacity
													a__:       Optional[Any]											=0
													a__:       Dict											=0
													a__:       Optional[Any]											=0
													a__:       dict[T, DoubleLinkedListNode[T, U]]											={}


						def __repr__( self						:  Optional[int]			):
													return (
													    F"CacheInfo(hits={self.hits}, misses={self.miss}, "
													    F"capacity={self.capacity}, current_size={self.num_keys})"
													)


						def __contains__( self						:  Optional[Any]      ,       _a						:  T			):
													return key in self.cache


						def   _lowerCamelCase			( self						:  Optional[Any]      ,       _a						:  T			):

													if key in self.cache:
																				self.hits += 1
																				a__:       DoubleLinkedListNode[T, U]											=self.cache[key]
																				a__:       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   _lowerCamelCase			( self						:  List[str]      ,       _a						:  T      ,       _a						:  U			):

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

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

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







						@classmethod
						def   _lowerCamelCase			( cls						:  type[LFUCache[T, U]]      ,       _a						:  int = 1_2_8			):

													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:
																																		a__:       Optional[int]											=LFUCache(_a			)

																											a__:       List[str]											=cls.decorator_function_to_instance_map[func].get(args[0]			)
																											if result is None:
																																		a__:       List[str]											=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()










from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_tokenizers_available, is_torch_available


__UpperCAmelCase						  =     {
    '''configuration_splinter''': ['''SPLINTER_PRETRAINED_CONFIG_ARCHIVE_MAP''', '''SplinterConfig'''],
    '''tokenization_splinter''': ['''SplinterTokenizer'''],
}

try:
		if not is_tokenizers_available():
				raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
		pass
else:
		__UpperCAmelCase						  =     ['''SplinterTokenizerFast''']

try:
		if not is_torch_available():
				raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
		pass
else:
		__UpperCAmelCase						  =     [
		    '''SPLINTER_PRETRAINED_MODEL_ARCHIVE_LIST''',
		    '''SplinterForQuestionAnswering''',
		    '''SplinterForPreTraining''',
		    '''SplinterLayer''',
		    '''SplinterModel''',
		    '''SplinterPreTrainedModel''',
		]


if TYPE_CHECKING:
		from .configuration_splinter import SPLINTER_PRETRAINED_CONFIG_ARCHIVE_MAP, SplinterConfig
		from .tokenization_splinter import SplinterTokenizer

		try:
				if not is_tokenizers_available():
						raise OptionalDependencyNotAvailable()
		except OptionalDependencyNotAvailable:
				pass
		else:
				from .tokenization_splinter_fast import SplinterTokenizerFast

		try:
				if not is_torch_available():
						raise OptionalDependencyNotAvailable()
		except OptionalDependencyNotAvailable:
				pass
		else:
				from .modeling_splinter import (
				    SPLINTER_PRETRAINED_MODEL_ARCHIVE_LIST,
				    SplinterForPreTraining,
				    SplinterForQuestionAnswering,
				    SplinterLayer,
				    SplinterModel,
				    SplinterPreTrainedModel,
				)


else:
		import sys

		__UpperCAmelCase						  =     _LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)





