void debug_buckets(HT const& hashtable) {
std::multimap<size_t, MyClass const*> debug_map;
std::transform(hashtable.begin(), hashtable.end(),
std::inserter(debug_map, debug_map.end()),
[&](MyClass const& mc) { return std::make_pair(hashtable.bucket(mc), &mc); }
);
std::cout << "\nDebugging buckets of hashtable\n";
for (auto& entry : debug_map)
std::cout << "Debug bucket: " << entry.first << " -> " << *entry.second << "\n";
}