pub fn derive_agg_decryption_key(
agg_pk: &AggregatePublicKey,
encryption_seed: &[u8; 32],
) -> AggregateDecryptionKey
pub fn derive_agg_decryption_key(
agg_pk: &AggregatePublicKey,
encryption_seed: &[u8; 32],
) -> AggregateDecryptionKey