+#[allow(unused)]
+pub(super) fn construct_trampoline_onion_packet(
+ payloads: Vec<msgs::OutboundTrampolinePayload>, onion_keys: Vec<OnionKeys>,
+ prng_seed: [u8; 32], associated_data: &PaymentHash, length: u16,
+) -> Result<msgs::TrampolineOnionPacket, ()> {
+ let mut packet_data = vec![0u8; length as usize];
+
+ let mut chacha = ChaCha20::new(&prng_seed, &[0; 8]);
+ chacha.process(&vec![0u8; length as usize], &mut packet_data);
+
+ construct_onion_packet_with_init_noise::<_, _>(
+ payloads,
+ onion_keys,
+ packet_data,
+ Some(associated_data),
+ )
+}
+