Trait with definition of trie layout. Contains all associated trait needed for a trie definition or implementation.
Hasher to use for this trie.
Codec to use (needs to match hasher and nibble ops).
const USE_EXTENSION: bool
If true, the trie will use extension nodes and no partial in branch, if false the trie will only use branch and node with partials in both.
const ALLOW_EMPTY: bool
If true, the trie will allow empty values into