rustworkx.PyDAG.insert_node_on_in_edges_multiple#

PyDAG.insert_node_on_in_edges_multiple(node, ref_nodes, /)#

Insert a node between a list of reference nodes and all their predecessors

This essentially iterates over all edges leading into the reference nodes specified in the ref_nodes parameter, removes those edges and then adds 2 edges, one from the predecessor of ref_node to node and the other one from node to ref_node. The edge payloads of the two newly created edges are copied by reference from the original edge that gets removed.

Parameters:

  • node (int) – The index of the node to insert

  • ref_nodes (list[int]) – The list of indices of reference nodes to be prepended by node