pub(crate) fn advance_path_by_one<NS: Deref, NL: Deref, T>(
path: &mut BlindedPath, node_signer: &NS, node_id_lookup: &NL, secp_ctx: &Secp256k1<T>
) -> Result<(), ()>
pub(crate) fn advance_path_by_one<NS: Deref, NL: Deref, T>(
path: &mut BlindedPath, node_signer: &NS, node_id_lookup: &NL, secp_ctx: &Secp256k1<T>
) -> Result<(), ()>