/// For example, this may be returned if the feerate implies we cannot open a channel at the
/// requested value, but opening a larger channel would succeed.
FeeRateTooHigh {err: String, feerate: u64},
/// For example, this may be returned if the feerate implies we cannot open a channel at the
/// requested value, but opening a larger channel would succeed.
FeeRateTooHigh {err: String, feerate: u64},