This is a multimap implementation for Rust. Implemented as a thin wrapper around std::collections::HashMap.
````rust extern crate multimap;
use multimap::MultiMap;
fn main () { let mut map = MultiMap::new();
map.insert("key1", 42);
map.insert("key1", 1337);
map.insert("key2", 2332);
assert_eq!(map["key1"], 42);
assert_eq!(map.get("key1"), Some(&42));
assert_eq!(map.get_vec("key1"), Some(&vec![42, 1337]));
} ````