pub trait HashMapExt<K, V> {
    // Required method
    fn insert_same(&mut self, key: K, value: V);
}Required Methods§
sourcefn insert_same(&mut self, key: K, value: V)
 
fn insert_same(&mut self, key: K, value: V)
Same as HashMap::insert, but it may panic if there’s already an
entry for key with a value not equal to value