/// Amount (in millionths of a satoshi) the channel will charge per transferred satoshi.
/// This may be allowed to change at runtime in a later update, however doing so must result in
/// update messages sent to notify all nodes of our updated relay fee.
/// Amount (in millionths of a satoshi) the channel will charge per transferred satoshi.
/// This may be allowed to change at runtime in a later update, however doing so must result in
/// update messages sent to notify all nodes of our updated relay fee.