



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 				__snake_case						(     unittest.TestCase						):




							def    UpperCAmelCase__			(       self     :       Any):
									lowerCAmelCase_			:     Any									= inspect.getfile(accelerate.test_utils)
									lowerCAmelCase_			:     Tuple									= 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_			:     int									= test_metrics




							@require_cpu
							def    UpperCAmelCase__			(       self     :       Union[str, Any]):
									debug_launcher(self.test_metrics.main				,				num_processes=1)




							@require_cpu
							def    UpperCAmelCase__			(       self     :       List[str]):
									debug_launcher(self.test_metrics.main)




							@require_single_gpu
							def    UpperCAmelCase__			(       self     :       Union[str, Any]):
									self.test_metrics.main()







							@require_multi_gpu
							def    UpperCAmelCase__			(       self     :       str):
									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(A_				,				env=os.environ.copy())










"""simple docstring"""
def       _snake_case						(						UpperCamelCase						:		list						):
 if not isinstance(UpperCamelCase			,		UpperCamelCase						):
  raise ValueError("""Input series is not valid, valid series - [2, 4, 6]"""						)
 if len(UpperCamelCase						) == 0:
  raise ValueError("""Input list must be a non empty list"""						)
 if len(UpperCamelCase						) == 1:
  return True
 UpperCAmelCase	:					Union[str, Any]	=	series[1] - series[0]
 for index in range(len(UpperCamelCase						) - 1						):
  if series[index + 1] - series[index] != common_diff:
   return False
 return True

def       _snake_case						(						UpperCamelCase						:		list						):
 if not isinstance(UpperCamelCase			,		UpperCamelCase						):
  raise ValueError("""Input series is not valid, valid series - [2, 4, 6]"""						)
 if len(UpperCamelCase						) == 0:
  raise ValueError("""Input list must be a non empty list"""						)
 UpperCAmelCase	:					Any	=	0
 for val in series:
  answer += val
 return answer / len(UpperCamelCase						)


if __name__ == "__main__":
      import doctest

      doctest.testmod()
