shortest_cycle finds a shortest cycle starting and ending at the given node; this can be helpful in analysing cyclic garbage without having to examine the entire strongly connected component of the node
find_by_typename simply extracts all objects whose type has a given __name__
count_by_typename returns counts of the whole graph by typename.
This PR adds a few new
ObjectGraphmethods:shortest_cyclefinds a shortest cycle starting and ending at the given node; this can be helpful in analysing cyclic garbage without having to examine the entire strongly connected component of the nodefind_by_typenamesimply extracts all objects whosetypehas a given__name__count_by_typenamereturns counts of the whole graph by typename.