






"""simple docstring"""
from __future__ import annotations

import sys
from collections import deque
from typing import Generic, TypeVar

lowerCamelCase_					=      TypeVar('''T''')







class 			UpperCamelCase_       (Generic[T]     ):
	__magic_name__	      =				42  # Cache store of keys
	__magic_name__	      =				42  # References of the keys in cache
	__magic_name__	      =				10  # Maximum capacity of cache





	def __init__(      self					: List[str]	,	lowerCAmelCase_					: int						)						->			None:
				UpperCAmelCase_     : Union[str, Any]			     =					deque()
				UpperCAmelCase_     : Optional[Any]			     =					set()
				if not n:
							UpperCAmelCase_     : Union[str, Any]			     =					sys.maxsize
				elif n < 0:
							raise ValueError("n should be an integer greater than 0."						)
				else:
							UpperCAmelCase_     : Optional[int]			     =					n





	def      _SCREAMING_SNAKE_CASE      (      self					: Tuple	,	lowerCAmelCase_					: T						)						->			None:
				if x not in self.key_reference:
							if len(self.dq_store						) == LRUCache._MAX_CAPACITY:
										UpperCAmelCase_     : List[str]			     =					self.dq_store.pop()
										self.key_reference.remove(lowerCAmelCase_						)
				else:
							self.dq_store.remove(lowerCAmelCase_						)

				self.dq_store.appendleft(lowerCAmelCase_						)
				self.key_reference.add(lowerCAmelCase_						)





	def      _SCREAMING_SNAKE_CASE      (      self					: Optional[Any]						)						->			None:
				for k in self.dq_store:
							print(lowerCAmelCase_						)





	def __repr__(      self					: int						)						->			str:
				return f"""LRUCache({self._MAX_CAPACITY}) => {list(self.dq_store						)}"""


if __name__ == "__main__":
			import doctest

			doctest.testmod()

			lowerCamelCase_					=      LRUCache(4)
			lru_cache.refer('''A''')
			lru_cache.refer(2)
			lru_cache.refer(3)
			lru_cache.refer('''A''')
			lru_cache.refer(4)
			lru_cache.refer(5)
			lru_cache.display()

			print(lru_cache)
			assert str(lru_cache) == "LRUCache(4) => [5, 4, 'A', 3]"











"""simple docstring"""
from torch import nn

def 				snake_case      (   A__						):
			if act_fn in ["swish", "silu"]:
						return nn.SiLU()
			elif act_fn == "mish":
						return nn.Mish()
			elif act_fn == "gelu":
						return nn.GELU()
			else:
						raise ValueError(F"""Unsupported activation function: {act_fn}"""						)



