Function akd::directory::get_directory_root_hash_and_ep

pub async fn get_directory_root_hash_and_ep<S: Storage + Sync + Send, H: Hasher, V: VRFKeyStorage>(
    akd_dir: &Directory<S, V>
) -> Result<(H::Digest, u64), AkdError>

Gets the azks root hash at the current epoch.