//Channel init:
fn handle_open_channel(&self, their_node_id: &PublicKey, msg: &OpenChannel) -> Result<AcceptChannel, HandleError>;
fn handle_accept_channel(&self, their_node_id: &PublicKey, msg: &AcceptChannel) -> Result<(), HandleError>;
//Channel init:
fn handle_open_channel(&self, their_node_id: &PublicKey, msg: &OpenChannel) -> Result<AcceptChannel, HandleError>;
fn handle_accept_channel(&self, their_node_id: &PublicKey, msg: &AcceptChannel) -> Result<(), HandleError>;