

from __future__ import annotations

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

SCREAMING_SNAKE_CASE_        =      TypeVar('T')
SCREAMING_SNAKE_CASE_        =      TypeVar('U')

class 				a  (	Generic[T, U]				):


						def __init__(       self						,					A_						,					A_	):







										'''simple docstring'''


										_UpperCAmelCase       :		Optional[Any] 		=    key
										_UpperCAmelCase       :		int 		=    val
										_UpperCAmelCase       :		DoubleLinkedListNode[T, U] | None 		=    None
										_UpperCAmelCase       :		DoubleLinkedListNode[T, U] | None 		=    None





						def __repr__(       self	):







										'''simple docstring'''


										return (
										    f'Node: key: {self.key}, val: {self.val}, '
										    f'has next: {bool(self.next	)}, has prev: {bool(self.prev	)}'
										)







class 				a  (	Generic[T, U]				):


						def __init__(       self	):







										'''simple docstring'''


										_UpperCAmelCase       :		DoubleLinkedListNode[T, U] 		=    DoubleLinkedListNode(A_						,					A_	)
										_UpperCAmelCase       :		DoubleLinkedListNode[T, U] 		=    DoubleLinkedListNode(A_						,					A_	)
										_UpperCAmelCase		,							_UpperCAmelCase       :		str 		=    self.rear, self.head


						def __repr__(       self	):







										'''simple docstring'''


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


						def        _UpperCAmelCase				(       self						,					A_	):







										'''simple docstring'''


										_UpperCAmelCase       :		Optional[int] 		=    self.rear.prev

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

										_UpperCAmelCase       :		int 		=    node
										_UpperCAmelCase       :		Optional[int] 		=    previous
										_UpperCAmelCase       :		List[str] 		=    node
										_UpperCAmelCase       :		Union[str, Any] 		=    self.rear





						def        _UpperCAmelCase				(       self						,					A_	):







										'''simple docstring'''


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

										_UpperCAmelCase       :		Any 		=    node.next
										_UpperCAmelCase       :		Any 		=    node.prev
										_UpperCAmelCase       :		List[Any] 		=    None
										_UpperCAmelCase       :		List[str] 		=    None
										return node







class 				a  (	Generic[T, U]				):
						_lowercase    						=			{}


						def __init__(       self						,					A_	):







										'''simple docstring'''


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


						def __repr__(       self	):







										'''simple docstring'''


										return (
										    f'CacheInfo(hits={self.hits}, misses={self.miss}, '
										    f'capacity={self.capacity}, current size={self.num_keys})'
										)


						def __contains__(       self						,					A_	):







										'''simple docstring'''


										return key in self.cache


						def        _UpperCAmelCase				(       self						,					A_	):







										'''simple docstring'''


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







										'''simple docstring'''


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

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

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





						@classmethod
						def        _UpperCAmelCase				(       cls						,					A_ = 128	):







										'''simple docstring'''


										def cache_decorator_inner(A_	) -> Callable[..., U]:
														def cache_decorator_wrapper(*A_	) -> U:
																		if func not in cls.decorator_function_to_instance_map:
																						_UpperCAmelCase       :		Optional[Any] 		=    LRUCache(A_	)

																		_UpperCAmelCase       :		Optional[Any] 		=    cls.decorator_function_to_instance_map[func].get(args[0]	)
																		if result is None:
																						_UpperCAmelCase       :		Union[str, Any] 		=    func(*A_	)
																						cls.decorator_function_to_instance_map[func].put(args[0]						,					A_	)
																		return result

														def cache_info() -> LRUCache[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_torch_available


SCREAMING_SNAKE_CASE_        =      {
    'configuration_nllb_moe': [
        'NLLB_MOE_PRETRAINED_CONFIG_ARCHIVE_MAP',
        'NllbMoeConfig',
    ]
}

try:
					if not is_torch_available():
										raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
					pass
else:
					SCREAMING_SNAKE_CASE_        =      [
					    'NLLB_MOE_PRETRAINED_MODEL_ARCHIVE_LIST',
					    'NllbMoeForConditionalGeneration',
					    'NllbMoeModel',
					    'NllbMoePreTrainedModel',
					    'NllbMoeTop2Router',
					    'NllbMoeSparseMLP',
					]


if TYPE_CHECKING:
					from .configuration_nllb_moe import (
					    NLLB_MOE_PRETRAINED_CONFIG_ARCHIVE_MAP,
					    NllbMoeConfig,
					)

					try:
										if not is_torch_available():
															raise OptionalDependencyNotAvailable()
					except OptionalDependencyNotAvailable:
										pass
					else:
										from .modeling_nllb_moe import (
										    NLLB_MOE_PRETRAINED_MODEL_ARCHIVE_LIST,
										    NllbMoeForConditionalGeneration,
										    NllbMoeModel,
										    NllbMoePreTrainedModel,
										    NllbMoeSparseMLP,
										    NllbMoeTopaRouter,
										)


else:
					import sys

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


