





'''simple docstring'''


import warnings

from .state import AcceleratorState, GradientState


warnings.filterwarnings("ignore", category=UserWarning, module="torch.optim.lr_scheduler")






class       UpperCamelCase__  :







	def __init__(				self			:   Dict , lowerCamelCase			:   List[str] , lowerCamelCase			:   Any , lowerCamelCase			:   bool = True , lowerCamelCase			:   bool = False		):




				'''simple docstring'''
				a__     = scheduler
				a__     = optimizers if isinstance(lowerCamelCase , (list, tuple)		) else [optimizers]
				a__     = split_batches
				a__     = step_with_optimizer
				a__     = GradientState()







	def 						__a   (				self			:   List[Any] , *lowerCamelCase			:   Union[str, Any] , **lowerCamelCase			:   Optional[int]		):




				'''simple docstring'''
				if not self.step_with_optimizer:
							# No link between scheduler and optimizer -> just step
							self.scheduler.step(*lowerCamelCase , **lowerCamelCase		)
							return

				# Otherwise, first make sure the optimizer was stepped.
				if not self.gradient_state.sync_gradients:
							if self.gradient_state.adjust_scheduler:
										self.scheduler._step_count += 1
							return

				for opt in self.optimizers:
							if opt.step_was_skipped:
										return
				if self.split_batches:
							# Split batches -> the training dataloader batch size is not changed so one step per training step
							self.scheduler.step(*lowerCamelCase , **lowerCamelCase		)
				else:
							# Otherwise the training dataloader batch size was multiplied by `num_processes`, so we need to do
							# num_processes steps per training step
							a__     = AcceleratorState().num_processes
							for _ in range(lowerCamelCase		):
										# Special case when using OneCycle and `drop_last` was not used
										if hasattr(self.scheduler , "total_steps"		):
													if self.scheduler._step_count <= self.scheduler.total_steps:
																self.scheduler.step(*lowerCamelCase , **lowerCamelCase		)
										else:
													self.scheduler.step(*lowerCamelCase , **lowerCamelCase		)







	def 						__a   (				self			:   Optional[int]		):




				'''simple docstring'''
				return self.scheduler.get_last_lr()







	def 						__a   (				self			:   int		):




				'''simple docstring'''
				return self.scheduler.state_dict()







	def 						__a   (				self			:   Tuple , lowerCamelCase			:   List[str]		):




				'''simple docstring'''
				self.scheduler.load_state_dict(lowerCamelCase		)







	def 						__a   (				self			:   Optional[Any]		):




				'''simple docstring'''
				return self.scheduler.get_lr()







	def 						__a   (				self			:   List[str] , *lowerCamelCase			:   Optional[Any] , **lowerCamelCase			:   str		):




				'''simple docstring'''
				return self.scheduler.print_lr(*lowerCamelCase , **lowerCamelCase		)










'''simple docstring'''


class       UpperCamelCase__  :







	def __init__(				self			:   str , lowerCamelCase			:   int , lowerCamelCase			:   List[str]=None , lowerCamelCase			:   int=None		):




				'''simple docstring'''
				a__     = data
				a__     = previous
				a__     = next_node







	def __str__(				self			:   List[Any]		):




				'''simple docstring'''
				return F'''{self.data}'''







	def 						__a   (				self			:   List[Any]		):




				'''simple docstring'''
				return self.data







	def 						__a   (				self			:   Tuple		):




				'''simple docstring'''
				return self.next







	def 						__a   (				self			:   Union[str, Any]		):




				'''simple docstring'''
				return self.previous






class       UpperCamelCase__  :







	def __init__(				self			:   int , lowerCamelCase			:   Tuple		):




				'''simple docstring'''
				a__     = head







	def __iter__(				self			:   Any		):




				'''simple docstring'''
				return self







	def 						__a   (				self			:   List[Any]		):




				'''simple docstring'''
				if not self.current:
							raise StopIteration
				else:
							a__     = self.current.get_data()
							a__     = self.current.get_next()
							return value






class       UpperCamelCase__  :







	def __init__(				self			:   Tuple		):




				'''simple docstring'''
				a__     = None  # First node in list
				a__     = None  # Last node in list







	def __str__(				self			:   Any		):




				'''simple docstring'''
				a__     = self.head
				a__     = []
				while current is not None:
							nodes.append(current.get_data()		)
							a__     = current.get_next()
				return " ".join(str(lowerCamelCase		) for node in nodes		)







	def __contains__(				self			:   Optional[int] , lowerCamelCase			:   int		):




				'''simple docstring'''
				a__     = self.head
				while current:
							if current.get_data() == value:
										return True
							a__     = current.get_next()
				return False







	def __iter__(				self			:   int		):




				'''simple docstring'''
				return LinkedListIterator(self.head		)







	def 						__a   (				self			:   str		):




				'''simple docstring'''
				if self.head:
							return self.head.get_data()
				return None







	def 						__a   (				self			:   Union[str, Any]		):




				'''simple docstring'''
				if self.tail:
							return self.tail.get_data()
				return None







	def 						__a   (				self			:   List[Any] , lowerCamelCase			:   Node		):




				'''simple docstring'''
				if self.head is None:
							a__     = node
							a__     = node
				else:
							self.insert_before_node(self.head , lowerCamelCase		)







	def 						__a   (				self			:   List[str] , lowerCamelCase			:   Node		):




				'''simple docstring'''
				if self.head is None:
							self.set_head(lowerCamelCase		)
				else:
							self.insert_after_node(self.tail , lowerCamelCase		)







	def 						__a   (				self			:   List[str] , lowerCamelCase			:   int		):




				'''simple docstring'''
				a__     = Node(lowerCamelCase		)
				if self.head is None:
							self.set_head(lowerCamelCase		)
				else:
							self.set_tail(lowerCamelCase		)







	def 						__a   (				self			:   Any , lowerCamelCase			:   Node , lowerCamelCase			:   Node		):




				'''simple docstring'''
				a__     = node
				a__     = node.previous

				if node.get_previous() is None:
							a__     = node_to_insert
				else:
							a__     = node_to_insert

				a__     = node_to_insert







	def 						__a   (				self			:   Tuple , lowerCamelCase			:   Node , lowerCamelCase			:   Node		):




				'''simple docstring'''
				a__     = node
				a__     = node.next

				if node.get_next() is None:
							a__     = node_to_insert
				else:
							a__     = node_to_insert

				a__     = node_to_insert







	def 						__a   (				self			:   Union[str, Any] , lowerCamelCase			:   int , lowerCamelCase			:   int		):




				'''simple docstring'''
				a__     = 1
				a__     = Node(lowerCamelCase		)
				a__     = self.head
				while node:
							if current_position == position:
										self.insert_before_node(lowerCamelCase , lowerCamelCase		)
										return
							current_position += 1
							a__     = node.next
				self.insert_after_node(self.tail , lowerCamelCase		)







	def 						__a   (				self			:   List[Any] , lowerCamelCase			:   int		):




				'''simple docstring'''
				a__     = self.head
				while node:
							if node.get_data() == item:
										return node
							a__     = node.get_next()
				raise Exception("Node not found"		)







	def 						__a   (				self			:   List[Any] , lowerCamelCase			:   List[str]		):




				'''simple docstring'''
				if (node := self.get_node(lowerCamelCase		)) is not None:
							if node == self.head:
										a__     = self.head.get_next()

							if node == self.tail:
										a__     = self.tail.get_previous()

							self.remove_node_pointers(lowerCamelCase		)







	@staticmethod
	def 						__a   (				lowerCamelCase			:   Node		):




				'''simple docstring'''
				if node.get_next():
							a__     = node.previous

				if node.get_previous():
							a__     = node.next

				a__     = None
				a__     = None







	def 						__a   (				self			:   List[str]		):




				'''simple docstring'''
				return self.head is None







def    _lowerCamelCase  ()   ->    None:
			pass


if __name__ == "__main__":
		import doctest

		doctest.testmod()



