class   _lowerCAmelCase		:







							def __init__(				self     :    int	,					__snake_case     :    int	,					__snake_case     :    List[Any]=None	,					__snake_case     :    List[str]=None		):
										lowerCamelCase						:Union[str, Any]						  =     data
										lowerCamelCase						:str						  =     previous
										lowerCamelCase						:Optional[int]						  =     next_node







							def __str__(				self     :    List[Any]		):
										return F"{self.data}"







							def 				snake_case  (				self     :    List[str]		):
										return self.data







							def 				snake_case  (				self     :    int		):
										return self.next







							def 				snake_case  (				self     :    str		):
										return self.previous


class   _lowerCAmelCase		:







							def __init__(				self     :    Union[str, Any]	,					__snake_case     :    Any		):
										lowerCamelCase						:str						  =     head







							def __iter__(				self     :    Union[str, Any]		):
										return self







							def 				snake_case  (				self     :    Any		):
										if not self.current:
													raise StopIteration
										else:
													lowerCamelCase						:Dict						  =     self.current.get_data()
													lowerCamelCase						:Union[str, Any]						  =     self.current.get_next()
													return value


class   _lowerCAmelCase		:







							def __init__(				self     :    str		):
										lowerCamelCase						:Optional[Any]						  =     None  # First node in list
										lowerCamelCase						:Union[str, Any]						  =     None  # Last node in list







							def __str__(				self     :    Dict		):
										lowerCamelCase						:Tuple						  =     self.head
										lowerCamelCase						:Any						  =     []
										while current is not None:
													nodes.append(current.get_data()		)
													lowerCamelCase						:Optional[Any]						  =     current.get_next()
										return " ".join(str(__snake_case		) for node in nodes		)







							def __contains__(				self     :    List[Any]	,					__snake_case     :    int		):
										lowerCamelCase						:Optional[int]						  =     self.head
										while current:
													if current.get_data() == value:
																return True
													lowerCamelCase						:Union[str, Any]						  =     current.get_next()
										return False







							def __iter__(				self     :    Any		):
										return LinkedListIterator(self.head		)







							def 				snake_case  (				self     :    Union[str, Any]		):
										if self.head:
													return self.head.get_data()
										return None







							def 				snake_case  (				self     :    List[str]		):
										if self.tail:
													return self.tail.get_data()
										return None







							def 				snake_case  (				self     :    Optional[Any]	,					__snake_case     :    Node		):
										if self.head is None:
													lowerCamelCase						:Optional[int]						  =     node
													lowerCamelCase						:Dict						  =     node
										else:
													self.insert_before_node(self.head	,					__snake_case		)







							def 				snake_case  (				self     :    List[str]	,					__snake_case     :    Node		):
										if self.head is None:
													self.set_head(__snake_case		)
										else:
													self.insert_after_node(self.tail	,					__snake_case		)







							def 				snake_case  (				self     :    int	,					__snake_case     :    int		):
										lowerCamelCase						:List[Any]						  =     Node(__snake_case		)
										if self.head is None:
													self.set_head(__snake_case		)
										else:
													self.set_tail(__snake_case		)







							def 				snake_case  (				self     :    Tuple	,					__snake_case     :    Node	,					__snake_case     :    Node		):
										lowerCamelCase						:Any						  =     node
										lowerCamelCase						:Dict						  =     node.previous

										if node.get_previous() is None:
													lowerCamelCase						:Optional[Any]						  =     node_to_insert
										else:
													lowerCamelCase						:Optional[Any]						  =     node_to_insert

										lowerCamelCase						:int						  =     node_to_insert







							def 				snake_case  (				self     :    Optional[Any]	,					__snake_case     :    Node	,					__snake_case     :    Node		):
										lowerCamelCase						:Dict						  =     node
										lowerCamelCase						:Optional[int]						  =     node.next

										if node.get_next() is None:
													lowerCamelCase						:Union[str, Any]						  =     node_to_insert
										else:
													lowerCamelCase						:Dict						  =     node_to_insert

										lowerCamelCase						:List[str]						  =     node_to_insert







							def 				snake_case  (				self     :    int	,					__snake_case     :    int	,					__snake_case     :    int		):
										lowerCamelCase						:Tuple						  =     1
										lowerCamelCase						:int						  =     Node(__snake_case		)
										lowerCamelCase						:List[Any]						  =     self.head
										while node:
													if current_position == position:
																self.insert_before_node(__snake_case	,					__snake_case		)
																return
													current_position += 1
													lowerCamelCase						:str						  =     node.next
										self.insert_after_node(self.tail	,					__snake_case		)







							def 				snake_case  (				self     :    Any	,					__snake_case     :    int		):
										lowerCamelCase						:Dict						  =     self.head
										while node:
													if node.get_data() == item:
																return node
													lowerCamelCase						:List[Any]						  =     node.get_next()
										raise Exception('''Node not found'''		)







							def 				snake_case  (				self     :    Any	,					__snake_case     :    Tuple		):
										if (node := self.get_node(__snake_case		)) is not None:
													if node == self.head:
																lowerCamelCase						:Optional[Any]						  =     self.head.get_next()

													if node == self.tail:
																lowerCamelCase						:Optional[Any]						  =     self.tail.get_previous()

													self.remove_node_pointers(__snake_case		)







							@staticmethod
							def 				snake_case  (				__snake_case     :    Node		):
										if node.get_next():
													lowerCamelCase						:Any						  =     node.previous

										if node.get_previous():
													lowerCamelCase						:Any						  =     node.next

										lowerCamelCase						:Any						  =     None
										lowerCamelCase						:Tuple						  =     None







							def 				snake_case  (				self     :    List[str]		):
										return self.head is None





def  _lowerCamelCase					(   ):
			pass


if __name__ == "__main__":
			import doctest

			doctest.testmod()




import inspect
import os
import unittest

import torch

import accelerate
from accelerate import debug_launcher
from accelerate.test_utils import (
    execute_subprocess_async,
    require_cpu,
    require_huggingface_suite,
    require_multi_gpu,
    require_single_gpu,
)
from accelerate.utils import patch_environment
@require_huggingface_suite
class   _lowerCAmelCase		(     unittest.TestCase				):







							def 				snake_case  (				self     :    Tuple		):
										lowerCamelCase						:List[Any]						  =     inspect.getfile(accelerate.test_utils		)
										lowerCamelCase						:Dict						  =     os.path.sep.join(
										    mod_file.split(os.path.sep		)[:-1] + ['''scripts''', '''external_deps''', '''test_metrics.py''']		)

										from accelerate.test_utils.scripts.external_deps import test_metrics  # noqa: F401

										lowerCamelCase						:Any						  =     test_metrics







							@require_cpu
							def 				snake_case  (				self     :    Dict		):
										debug_launcher(self.test_metrics.main	,					num_processes=1		)







							@require_cpu
							def 				snake_case  (				self     :    int		):
										debug_launcher(self.test_metrics.main		)







							@require_single_gpu
							def 				snake_case  (				self     :    Any		):
										self.test_metrics.main()







							@require_multi_gpu
							def 				snake_case  (				self     :    Optional[int]		):
										print(F"Found {torch.cuda.device_count()} devices."		)
										lowerCamelCase						:Optional[int]						  =     ['''torchrun''', F"--nproc_per_node={torch.cuda.device_count()}", self.test_file_path]
										with patch_environment(omp_num_threads=1		):
													execute_subprocess_async(__snake_case	,					env=os.environ.copy()		)



