-/// payment_hash type, use to cross-lock hop
-/// (C-not exported) as we just use [u8; 32] directly
-#[derive(Hash, Copy, Clone, PartialEq, Eq, Debug)]
-pub struct PaymentHash(pub [u8;32]);
-/// payment_preimage type, use to route payment between hop
-/// (C-not exported) as we just use [u8; 32] directly
-#[derive(Hash, Copy, Clone, PartialEq, Eq, Debug)]
-pub struct PaymentPreimage(pub [u8;32]);
-/// payment_secret type, use to authenticate sender to the receiver and tie MPP HTLCs together
-/// (C-not exported) as we just use [u8; 32] directly
-#[derive(Hash, Copy, Clone, PartialEq, Eq, Debug)]
-pub struct PaymentSecret(pub [u8;32]);
-