Result_SignatureNoneZ sign_closing_transaction(byte[] closing_tx);
Result_SignatureNoneZ sign_channel_announcement(UnsignedChannelAnnouncement msg);
void on_accept(ChannelPublicKeys channel_points, short counterparty_selected_contest_delay, short holder_selected_contest_delay);
Result_SignatureNoneZ sign_closing_transaction(byte[] closing_tx);
Result_SignatureNoneZ sign_channel_announcement(UnsignedChannelAnnouncement msg);
void on_accept(ChannelPublicKeys channel_points, short counterparty_selected_contest_delay, short holder_selected_contest_delay);