






from ..utils import DummyObject, requires_backends


class     __SCREAMING_SNAKE_CASE					(   metaclass=__lowercase):
						_SCREAMING_SNAKE_CASE	:       str   =					['''flax''', '''transformers''']






						def __init__(	self     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(self     ,						['flax', 'transformers']   )






						@classmethod
						def       UpperCamelCase__      (	cls     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(cls     ,						['flax', 'transformers']   )







						@classmethod
						def       UpperCamelCase__      (	cls     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(cls     ,						['flax', 'transformers']   )




class     __SCREAMING_SNAKE_CASE					(   metaclass=__lowercase):
						_SCREAMING_SNAKE_CASE	:       Union[str, Any]   =					['''flax''', '''transformers''']






						def __init__(	self     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(self     ,						['flax', 'transformers']   )






						@classmethod
						def       UpperCamelCase__      (	cls     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(cls     ,						['flax', 'transformers']   )







						@classmethod
						def       UpperCamelCase__      (	cls     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(cls     ,						['flax', 'transformers']   )




class     __SCREAMING_SNAKE_CASE					(   metaclass=__lowercase):
						_SCREAMING_SNAKE_CASE	:       List[Any]   =					['''flax''', '''transformers''']






						def __init__(	self     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(self     ,						['flax', 'transformers']   )






						@classmethod
						def       UpperCamelCase__      (	cls     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(cls     ,						['flax', 'transformers']   )







						@classmethod
						def       UpperCamelCase__      (	cls     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(cls     ,						['flax', 'transformers']   )




class     __SCREAMING_SNAKE_CASE					(   metaclass=__lowercase):
						_SCREAMING_SNAKE_CASE	:       List[Any]   =					['''flax''', '''transformers''']






						def __init__(	self     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(self     ,						['flax', 'transformers']   )






						@classmethod
						def       UpperCamelCase__      (	cls     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(cls     ,						['flax', 'transformers']   )







						@classmethod
						def       UpperCamelCase__      (	cls     ,						*_UpperCamelCase     ,						**_UpperCamelCase   ):






												"""simple docstring"""
												requires_backends(cls     ,						['flax', 'transformers']   )













from __future__ import annotations

__snake_case    :    Any         =     {
    """A""": ["""B""", """C""", """E"""],
    """B""": ["""A""", """D""", """E"""],
    """C""": ["""A""", """F""", """G"""],
    """D""": ["""B"""],
    """E""": ["""A""", """B""", """D"""],
    """F""": ["""C"""],
    """G""": ["""C"""],
}


class     __SCREAMING_SNAKE_CASE					:






						def __init__(	self     ,						_UpperCamelCase     ,						_UpperCamelCase   ):






												"""simple docstring"""
												lowerCAmelCase__    						=						graph
												# mapping node to its parent in resulting breadth first tree
												lowerCAmelCase__    						=						{}
												lowerCAmelCase__    						=						source_vertex






						def       UpperCamelCase__      (	self   ):






												"""simple docstring"""
												lowerCAmelCase__    						=						{self.source_vertex}
												lowerCAmelCase__    						=						None
												lowerCAmelCase__    						=						[self.source_vertex]  # first in first out queue

												while queue:
																		lowerCAmelCase__    						=						queue.pop(0   )
																		for adjacent_vertex in self.graph[vertex]:
																								if adjacent_vertex not in visited:
																														visited.add(_UpperCamelCase   )
																														lowerCAmelCase__    						=						vertex
																														queue.append(_UpperCamelCase   )







						def       UpperCamelCase__      (	self     ,						_UpperCamelCase   ):






												"""simple docstring"""
												if target_vertex == self.source_vertex:
																		return self.source_vertex

												lowerCAmelCase__    						=						self.parent.get(_UpperCamelCase   )
												if target_vertex_parent is None:
																		lowerCAmelCase__    						=						(
																		    F"No path from vertex: {self.source_vertex} to vertex: {target_vertex}"
																		)
																		raise ValueError(_UpperCamelCase   )

												return self.shortest_path(_UpperCamelCase   ) + F"->{target_vertex}"


if __name__ == "__main__":
					__snake_case    :    Optional[Any]         =     Graph(graph, """G""")
					g.breath_first_search()
					print(g.shortest_path("""D"""))
					print(g.shortest_path("""G"""))
					print(g.shortest_path("""Foo"""))





