std::collections::map {Key, Value}
init_with_key_values
macro HashMap* HashMap.init_with_key_values(&self, Allocator allocator, ..., uint capacity = DEFAULT_INITIAL_CAPACITY, float load_factor = DEFAULT_LOAD_FACTOR)macro HashMap* HashMap.init_with_key_values(&self, Allocator allocator, ..., uint capacity = DEFAULT_INITIAL_CAPACITY, float load_factor = DEFAULT_LOAD_FACTOR)