edge_id_orderkey

ucca.core.edge_id_orderkey(edge)

Key function which sorts Edges by its IDs (using id_orderkey()).

Args:

edge: Edge which we wish to sort according to the ID of its parent and children after using id_orderkey().

Returns:

a string with the layer and unique ID in such a way that sort will first order lexicography the layer ID then numerically the unique ID.