

"""simple docstring"""





import inspect
import unittest




class 					_lowerCAmelCase  (	unittest.TestCase   ):







 """simple docstring"""







 def 					_lowercase (			self							:			Tuple	):
    try:
       import diffusers  # noqa: F401
    except ImportError:
       assert False



 def 					_lowercase (			self							:			Optional[Any]	):
    import diffusers
    from diffusers.dependency_versions_table import deps

    __lowercase								=						inspect.getmembers(UpperCAmelCase__,					inspect.isclass	)

    for cls_name, cls_module in all_classes:
       if "dummy_" in cls_module.__module__:
          for backend in cls_module._backends:
             if backend == "k_diffusion":
                __lowercase								=						"k-diffusion"
             elif backend == "invisible_watermark":
                __lowercase								=						"invisible-watermark"
             assert backend in deps, F"""{backend} is not in the deps table!"""












lowerCamelCase       :       Tuple        =				{'''a''': ['''c''', '''b'''], '''b''': ['''d''', '''e'''], '''c''': [], '''d''': [], '''e''': []}
lowerCamelCase       :       int        =				['''a''', '''b''', '''c''', '''d''', '''e''']
def 					snake_case_						(   lowerCAmelCase_				:  Optional[int]				,				lowerCAmelCase_				:  str				,				lowerCAmelCase_				:  List[Any]					):
							__lowercase					:							Dict			=   start
							# add current to visited
							visited.append(lowerCAmelCase_					)
							__lowercase					:							Dict			=   edges[current]
							for neighbor in neighbors:
														# if neighbor not in visited, visit
														if neighbor not in visited:
																					__lowercase					:							List[Any]			=   topological_sort(lowerCAmelCase_				,				lowerCAmelCase_				,				lowerCAmelCase_					)
    # if all neighbors visited add current to sort
							sort.append(lowerCAmelCase_					)
							# if all vertices haven't been visited select a new one to visit
							if len(lowerCAmelCase_					) != len(lowerCAmelCase_					):
														for vertice in vertices:
																					if vertice not in visited:
																												__lowercase					:							Tuple			=   topological_sort(lowerCAmelCase_				,				lowerCAmelCase_				,				lowerCAmelCase_					)
    # return sort
							return sort


if __name__ == "__main__":
	lowerCamelCase       :       Any        =				topological_sort('''a''', [], [])
	print(sort)