



from __future__ import annotations

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

__A       =TypeVar("T")
__A       =TypeVar("U")

class 						UpperCAmelCase__     (     Generic[T, U]  ):




			'''simple docstring'''






			def __init__(  self				:					Optional[int]			,			a_				:					Tuple			,			a_				:					Any					):
					'''simple docstring'''





					__UpperCAmelCase       :	Union[str, Any]						=      key
					__UpperCAmelCase       :	str						=      val
					__UpperCAmelCase       :	Union[str, Any]						=      0
					__UpperCAmelCase       :	List[str]						=      None
					__UpperCAmelCase       :	str						=      None




			def __repr__(  self				:					List[str]					):
					'''simple docstring'''





					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 						UpperCAmelCase__     (     Generic[T, U]  ):




			'''simple docstring'''






			def __init__(  self				:					int					):
					'''simple docstring'''





					__UpperCAmelCase       :	List[str]						=      DoubleLinkedListNode(_UpperCAmelCase			,			_UpperCAmelCase					)
					__UpperCAmelCase       :	List[str]						=      DoubleLinkedListNode(_UpperCAmelCase			,			_UpperCAmelCase					)
					__UpperCAmelCase				,   __UpperCAmelCase       :	List[str]						=      self.rear, self.head




			def __repr__(  self				:					List[str]					):
					'''simple docstring'''





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




			def 					snake_case__	(  self				:					List[str]			,			a_				:					Tuple					):
					'''simple docstring'''





					__UpperCAmelCase       :	Tuple						=      self.rear.prev

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

					__UpperCAmelCase       :	Optional[int]						=      node
					__UpperCAmelCase       :	Any						=      previous
					__UpperCAmelCase       :	List[str]						=      node
					__UpperCAmelCase       :	List[str]						=      self.rear
					node.freq += 1
					self._position_node(_UpperCAmelCase					)




			def 					snake_case__	(  self				:					Any			,			a_				:					str					):
					'''simple docstring'''





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

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




			def 					snake_case__	(  self				:					Dict			,			a_				:					Any					):
					'''simple docstring'''





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

					__UpperCAmelCase       :	Any						=      node.next
					__UpperCAmelCase       :	Any						=      node.prev
					__UpperCAmelCase       :	int						=      None
					__UpperCAmelCase       :	Optional[Any]						=      None
					return node

class 						UpperCAmelCase__     (     Generic[T, U]  ):




			'''simple docstring'''






			UpperCamelCase     		=			{}




			def __init__(  self				:					Dict			,			a_				:					List[Any]					):
					'''simple docstring'''





					__UpperCAmelCase       :	Dict						=      DoubleLinkedList()
					__UpperCAmelCase       :	Tuple						=      capacity
					__UpperCAmelCase       :	List[Any]						=      0
					__UpperCAmelCase       :	Tuple						=      0
					__UpperCAmelCase       :	Optional[int]						=      0
					__UpperCAmelCase       :	Optional[int]						=      {}




			def __repr__(  self				:					Dict					):
					'''simple docstring'''





					return (
					    F'CacheInfo(hits={self.hits}, misses={self.miss}, '
					    F'capacity={self.capacity}, current_size={self.num_keys})'
					)




			def __contains__(  self				:					Union[str, Any]			,			a_				:					int					):
					'''simple docstring'''





					return key in self.cache




			def 					snake_case__	(  self				:					List[str]			,			a_				:					List[Any]					):
					'''simple docstring'''





					if key in self.cache:
							self.hits += 1
							__UpperCAmelCase       :	Tuple						=      self.cache[key]
							__UpperCAmelCase       :	List[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(_UpperCAmelCase					)
							return node.val
					self.miss += 1
					return None




			def 					snake_case__	(  self				:					List[str]			,			a_				:					List[str]			,			a_				:					str					):
					'''simple docstring'''





					if key not in self.cache:
							if self.num_keys >= self.capacity:
									# delete first node when over capacity
									__UpperCAmelCase       :	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
							__UpperCAmelCase       :	Union[str, Any]						=      DoubleLinkedListNode(_UpperCAmelCase			,			_UpperCAmelCase					)
							self.list.add(self.cache[key]					)
							self.num_keys += 1

					else:
							__UpperCAmelCase       :	Any						=      self.list.remove(self.cache[key]					)
							assert node is not None  # node guaranteed to be in list
							__UpperCAmelCase       :	Dict						=      value
							self.list.add(_UpperCAmelCase					)




			@classmethod
			def 					snake_case__	(  cls				:					Dict			,			a_				:					Union[str, Any] = 1_28					):
					'''simple docstring'''





					def cache_decorator_inner(a_				:					Tuple					) -> Callable[..., U]:
							def cache_decorator_wrapper(*a_				:					List[Any]					) -> U:
									if func not in cls.decorator_function_to_instance_map:
											__UpperCAmelCase       :	Any						=      LFUCache(_UpperCAmelCase					)

									__UpperCAmelCase       :	Any						=      cls.decorator_function_to_instance_map[func].get(args[0]					)
									if result is None:
											__UpperCAmelCase       :	Dict						=      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()









from collections import OrderedDict
from dataclasses import fields
from typing import Any, Tuple

import numpy as np

from .import_utils import is_torch_available






def 			__lowerCAmelCase       (SCREAMING_SNAKE_CASE   )->    Union[str, Any]:




      """simple docstring"""

      if is_torch_available():
            import torch

            if isinstance(SCREAMING_SNAKE_CASE   ,   torch.Tensor   ):
                  return True

      return isinstance(SCREAMING_SNAKE_CASE   ,   np.ndarray   )







class lowerCAmelCase_		(					lowerCamelCase__			):

 '''simple docstring'''

 def 		UpperCamelCase__	(      self   ):
       snake_case_			= fields(self   )

       # Safety and consistency checks
       if not len(_UpperCAmelCase   ):
             raise ValueError(F'''{self.__class__.__name__} has no fields.'''   )

       snake_case_			= getattr(self						, class_fields[0].name   )
       snake_case_			= all(getattr(self						, field.name   ) is None for field in class_fields[1:]   )

       if other_fields_are_none and isinstance(_UpperCAmelCase						, _UpperCAmelCase   ):
             for key, value in first_field.items():
                   snake_case_			= value
       else:
             for field in class_fields:
                   snake_case_			= getattr(self						, field.name   )
                   if v is not None:
                         snake_case_			= v



 def __delitem__(      self						, *_UpperCAmelCase						, **_UpperCAmelCase   ):
       raise Exception(F'''You cannot use ``__delitem__`` on a {self.__class__.__name__} instance.'''   )



 def 		UpperCamelCase__	(      self						, *_UpperCAmelCase						, **_UpperCAmelCase   ):
       raise Exception(F'''You cannot use ``setdefault`` on a {self.__class__.__name__} instance.'''   )



 def 		UpperCamelCase__	(      self						, *_UpperCAmelCase						, **_UpperCAmelCase   ):
       raise Exception(F'''You cannot use ``pop`` on a {self.__class__.__name__} instance.'''   )



 def 		UpperCamelCase__	(      self						, *_UpperCAmelCase						, **_UpperCAmelCase   ):
       raise Exception(F'''You cannot use ``update`` on a {self.__class__.__name__} instance.'''   )



 def __getitem__(      self						, _UpperCAmelCase   ):
       if isinstance(_UpperCAmelCase						, _UpperCAmelCase   ):
             snake_case_			= dict(self.items()   )
             return inner_dict[k]
       else:
             return self.to_tuple()[k]



 def __setattr__(      self						, _UpperCAmelCase						, _UpperCAmelCase   ):
       if name in self.keys() and value is not None:
             # Don't call self.__setitem__ to avoid recursion errors
             super().__setitem__(_UpperCAmelCase						, _UpperCAmelCase   )
       super().__setattr__(_UpperCAmelCase						, _UpperCAmelCase   )



 def __setitem__(      self						, _UpperCAmelCase						, _UpperCAmelCase   ):
       # Will raise a KeyException if needed
       super().__setitem__(_UpperCAmelCase						, _UpperCAmelCase   )
       # Don't call self.__setattr__ to avoid recursion errors
       super().__setattr__(_UpperCAmelCase						, _UpperCAmelCase   )





 def 		UpperCamelCase__	(      self   ):
       return tuple(self[k] for k in self.keys()   )