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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _identify_eds_ing(first, second):
 """Find nodes connecting adjacent edges. Args: first(Edge):
 Edge object representing the first edge. second(Edge):
 Edge object representing the second edge. Returns: tuple[int, int, set[int]]: The first two values represent left and right node indicies of the new edge. The third value is the new dependence set. """

        A = set([first.L, first.R])
        A.update(first.D)

        B = set([second.L, second.R])
        B.update(second.D)

        depend_set = A & B
        left, right = sorted(list(A ^ B))

        return left, right, depend_set