Function itertools::group_map::into_group_map

source ยท 
pub fn into_group_map<I, K, V>(iter: I) -> HashMap<K, Vec<V>>
where
    I: Iterator<Item = (K, V)>,
    K: Hash + Eq,
Expand description

Return a HashMap of keys mapped to a list of their corresponding values.

See .into_group_map() for more information.