pub fn create_chan_between_nodes_with_value_b<'a, 'b, 'c>(
    node_a: &Node<'a, 'b, 'c>,
    node_b: &Node<'a, 'b, 'c>,
    as_funding_msgs: &(ChannelReady, AnnouncementSignatures),
) -> (ChannelAnnouncement, ChannelUpdate, ChannelUpdate)