Method extend

libs/@local/graph/postgres-store/src/store/postgres/mod.rs:2420–2427

(&mut self, iter: I)

    T: Eq + Hash + Clone,
{
    fn extend<I>(&mut self, iter: I)
    where
        I: IntoIterator<Item = T>,
    {
        for key in iter {
            *self.map.entry(key).or_insert(0) += 1;
        }
    }
}

impl<T> FromIterator<T> for ResponseCountMap<T>