Function FlashNode.proposePayment

override Result!(agora.flash.Types.PublicNonce) proposePayment (
  PublicKey sender_pk,
  PublicKey recv_pk,
  geod24.bitblob.BitBlob!(64L) chan_id,
  uint seq_id,
  geod24.bitblob.BitBlob!(64L) payment_hash,
  Amount amount,
  Height lock_height,
  OnionPacket packet,
  PublicNonce peer_nonce,
  Height height
) @trusted;