tool_i_fit_obj()tool_i_fit_index()#include <bits/stdc++.h> from grpahs_find_subgraphs.cpp because its a) bad style, b) not cross platform compatible and c) wasteful d) actually a dirty hack - thanks to comment from Prof Brian Ripley - also: https://stackoverflow.com/a/46814932/1144966.NEWS.md file to track changes to the package.