Produce a range through the keys of a map.
Produce a range through the items of a map. (A key-value pair)
Produce a range through the values of a map.
An item from a map.
This struct implements a hashmap type, much like the standard associative array type.
This is a range which runs through a series of keys in map.
A range through a series of items in the map.
This is a range which runs through a series of values in a map.