pub fn calc_root<T, I, A, B>(data: I) -> <T::Hash as Hasher>::Out where
    T: TrieLayout,
    I: IntoIterator<Item = (A, B)>,
    A: AsRef<[u8]> + Ord + Debug,
    B: AsRef<[u8]> + Debug
Expand description

Trie builder root calculation utility.