Traverse all entries using foreach. TODO: turn this into ranges
Traverse all entries using foreach. TODO: turn this into ranges
Lookup a key and return the stored value. If the key does not currently exist, it is created and its value set to V.init.
Remove a key and associated value from the map.
An (unordered map), based on jive.set. Similar to builtin 'VKey', but with value-semantics.