
from __future__ import annotations

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


class        lowercase      :



		def __init__(				self       ,   A_       ,   A_ )						->      None:
				"""simple docstring"""
				UpperCamelCase						=  graph
				# mapping node to its parent in resulting breadth first tree
				UpperCamelCase						=  {}
				UpperCamelCase						=  source_vertex



		def __UpperCamelCase				(				self )						->      None:
				"""simple docstring"""
				UpperCamelCase						=  {self.source_vertex}
				UpperCamelCase						=  None
				UpperCamelCase						=  [self.source_vertex]  # first in first out queue

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



		def __UpperCamelCase				(				self       ,   A_ )						->      str:
				"""simple docstring"""
				if target_vertex == self.source_vertex:
						return self.source_vertex

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

				return self.shortest_path(A_ ) + F'''->{target_vertex}'''


if __name__ == "__main__":
					_UpperCAmelCase      :				List[str]          = Graph(graph, "G")
					g.breath_first_search()
					print(g.shortest_path("D"))
					print(g.shortest_path("G"))
					print(g.shortest_path("Foo"))


from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available


_UpperCAmelCase      :				Union[str, Any]          = {
    "configuration_git": ["GIT_PRETRAINED_CONFIG_ARCHIVE_MAP", "GitConfig", "GitVisionConfig"],
    "processing_git": ["GitProcessor"],
}

try:
					if not is_torch_available():
										raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
					pass
else:
					_UpperCAmelCase      :				Dict          = [
					    "GIT_PRETRAINED_MODEL_ARCHIVE_LIST",
					    "GitForCausalLM",
					    "GitModel",
					    "GitPreTrainedModel",
					    "GitVisionModel",
					]

if TYPE_CHECKING:
					from .configuration_git import GIT_PRETRAINED_CONFIG_ARCHIVE_MAP, GitConfig, GitVisionConfig
					from .processing_git import GitProcessor

					try:
										if not is_torch_available():
															raise OptionalDependencyNotAvailable()
					except OptionalDependencyNotAvailable:
										pass
					else:
										from .modeling_git import (
										    GIT_PRETRAINED_MODEL_ARCHIVE_LIST,
										    GitForCausalLM,
										    GitModel,
										    GitPreTrainedModel,
										    GitVisionModel,
										)

else:
					import sys

					_UpperCAmelCase      :				int          = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__)
