




def    UpperCAmelCase_				( __UpperCAmelCase		:      dict				)   ->					set:
      SCREAMING_SNAKE_CASE_      		=     set()
      # edges = list of graph's edges
      SCREAMING_SNAKE_CASE_      		=     get_edges(__UpperCAmelCase				)

      # While there are still elements in edges list, take an arbitrary edge
      # (from_node, to_node) and add his extremity to chosen_vertices and then
      # remove all arcs adjacent to the from_node and to_node
      while edges:
            SCREAMING_SNAKE_CASE_		,					SCREAMING_SNAKE_CASE_      		=     edges.pop()
            chosen_vertices.add(__UpperCAmelCase				)
            chosen_vertices.add(__UpperCAmelCase				)
            for edge in edges.copy():
                  if from_node in edge or to_node in edge:
                        edges.discard(__UpperCAmelCase				)
      return chosen_vertices

def    UpperCAmelCase_				( __UpperCAmelCase		:      dict				)   ->					set:
      SCREAMING_SNAKE_CASE_      		=     set()
      for from_node, to_nodes in graph.items():
            for to_node in to_nodes:
                  edges.add((from_node, to_node)				)
      return edges


if __name__ == "__main__":
   import doctest

   doctest.testmod()

   # graph = {0: [1, 3], 1: [0, 3], 2: [0, 3, 4], 3: [0, 1, 2], 4: [2, 3]}
   # print(f"Matching vertex cover:\n{matching_min_vertex_cover(graph)}")





import warnings

from ...utils import logging
from .image_processing_layoutlmva import LayoutLMvaImageProcessor


lowerCamelCase__					:  Union[str, Any]      							=				logging.get_logger(__name__)





class 			lowerCamelCase_				( _SCREAMING_SNAKE_CASE   ):


 '''simple docstring'''







 def __init__(				self    :						Dict							,							*_lowerCAmelCase    :						Optional[Any]							,							**_lowerCAmelCase    :						Any		):
       warnings.warn(
           'The class LayoutLMv2FeatureExtractor is deprecated and will be removed in version 5 of Transformers.'
           ' Please use LayoutLMv2ImageProcessor instead.'							,							_lowerCAmelCase							,							)
       super().__init__(*_lowerCAmelCase							,							**_lowerCAmelCase		)