


class      lowerCAmelCase__       :




     '''simple docstring'''


     def __init__(						self)			->				Optional[Any]:
            _A      :       Union[str, Any]				    = {}


     def  _lowerCamelCase (						self)			->				None:
            print(self.vertex)
            for i in self.vertex:
                   print(__lowerCamelCase ,						" -> " ,						" -> ".join([str(__lowerCamelCase) for j in self.vertex[i]]))


     def  _lowerCamelCase (						self ,						__lowerCamelCase ,						__lowerCamelCase)			->				None:
            # check if vertex is already present,
            if from_vertex in self.vertex:
                   self.vertex[from_vertex].append(__lowerCamelCase)
            else:
                   # else make a new vertex
                   _A      :       Optional[Any]				    = [to_vertex]


     def  _lowerCamelCase (						self)			->				None:
            # visited array for storing already visited nodes
            _A      :       List[Any]				    = [False] * len(self.vertex)

            # call the recursive helper function
            for i in range(len(self.vertex)):
                   if not visited[i]:
                          self.dfs_recursive(__lowerCamelCase ,						__lowerCamelCase)


     def  _lowerCamelCase (						self ,						__lowerCamelCase ,						__lowerCamelCase)			->				None:
            # mark start vertex as visited
            _A      :       str				    = True

            print(__lowerCamelCase ,						end=" ")

            # Recur for all the vertices that are adjacent to this node
            for i in self.vertex:
                   if not visited[i]:
                          self.dfs_recursive(__lowerCamelCase ,						__lowerCamelCase)


if __name__ == "__main__":
    lowerCAmelCase__      		= Graph()
    g.add_edge(0, 1)
    g.add_edge(0, 2)
    g.add_edge(1, 2)
    g.add_edge(2, 0)
    g.add_edge(2, 3)
    g.add_edge(3, 3)

    g.print_graph()
    print('DFS:')
    g.dfs()

    # OUTPUT:
    # 0  ->  1 -> 2
    # 1  ->  2
    # 2  ->  0 -> 3
    # 3  ->  3
    # DFS:
    #  0 1 2 3





import json
import os
import tempfile

from transformers.testing_utils import check_json_file_has_correct_format

class 		UpperCAmelCase__			:




			'''simple docstring'''






			UpperCamelCase									=       None




			def  snake_case__     (   self							: List[str] ):
					'''simple docstring'''





					__UpperCAmelCase    :     List[Any]													=	self.feature_extraction_class(**self.feat_extract_dict )
					__UpperCAmelCase    :     Optional[int]													=	json.loads(feat_extract.to_json_string() )
					for key, value in self.feat_extract_dict.items():
							self.assertEqual(obj[key]       ,       a_ )




			def  snake_case__     (   self							: Any ):
					'''simple docstring'''





					__UpperCAmelCase    :     str													=	self.feature_extraction_class(**self.feat_extract_dict )

					with tempfile.TemporaryDirectory() as tmpdirname:
							__UpperCAmelCase    :     Union[str, Any]													=	os.path.join(a_       ,       '''feat_extract.json''' )
							feat_extract_first.to_json_file(a_ )
							__UpperCAmelCase    :     Any													=	self.feature_extraction_class.from_json_file(a_ )

					self.assertEqual(feat_extract_second.to_dict()       ,       feat_extract_first.to_dict() )




			def  snake_case__     (   self							: Optional[int] ):
					'''simple docstring'''





					__UpperCAmelCase    :     Tuple													=	self.feature_extraction_class(**self.feat_extract_dict )

					with tempfile.TemporaryDirectory() as tmpdirname:
							__UpperCAmelCase    :     List[str]													=	feat_extract_first.save_pretrained(a_ )[0]
							check_json_file_has_correct_format(a_ )
							__UpperCAmelCase    :     Optional[Any]													=	self.feature_extraction_class.from_pretrained(a_ )

					self.assertEqual(feat_extract_second.to_dict()       ,       feat_extract_first.to_dict() )




			def  snake_case__     (   self							: Dict ):
					'''simple docstring'''





					__UpperCAmelCase    :     int													=	self.feature_extraction_class()
					self.assertIsNotNone(a_ )





