parameters: (self, start, end=None)
return_statement: return [node for node, step in self._bfs(start, end, forward=False)]
docstring: Returns a list of nodes in some backward BFS order.
          Starting from the start node the breadth first search proceeds along
          incoming edges.
docstring_summary: Returns a list of nodes in some backward BFS order.
          Starting from the start node the breadth first search proceeds along
          incoming edges.
docstring_tokens: Returns a list of nodes in some backward BFS order . Starting from the start node the breadth first search proceeds along incoming edges .
function: def back_bfs(self, start, end=None):
          """
          Returns a list of nodes in some backward BFS order.
          Starting from the start node the breadth first search proceeds along
          incoming edges.
          """
          return [node for node, step in self._bfs(start, end, forward=False)]
function_tokens: def back_bfs ( self , start , end = None ) : return [ node for node , step in self . _bfs ( start , end , forward = False ) ]