'x.get_shpaths(draw:[src, avoid_nodes, avoid_edges]) -> Paths
Return an object containing the shortest paths to objects in x.
The optional arguments are:
src:IdentitySet             An alternative source set of objects
avoid_nodes:IdentitySet     Nodes to avoid
avoid_edges:NodeGraph       Edges to avoid'

def get_shpaths(self, src=None, avoid_nodes=None, avoid_edges=()):

    return self.fam.Path.shpaths(self, src, avoid_nodes, avoid_edges)
