Function snowbridge_beacon_primitives::merkle_proof::subtree_index

pub const fn subtree_index(generalized_index: usize) -> usize

Spec: https://github.com/ethereum/consensus-specs/blob/fe9c1a8cbf0c2da8a4f349efdcd77dd7ac8445c4/specs/altair/light-client/sync-protocol.md#get_subtree_index