[graph-tool] Rich-club

Hi, I'm new with the graph-tool library. I was wondering if there is a function for computing the rich-club coefficient? The coefficient as a function of the vertex degree (slightly different from the assortativity coeficient). To be more specific a function that does the same as this function from networkx: http://networkx.lanl.gov/reference/generated/networkx.algorithms.richclub.ri... I think it might be one of these functions: http://graph-tool.skewed.de/static/doc/correlations.html , but I don't know which one specifically. Thank you in advance. Pablo