+ /// The `user_channel_id` value passed in to [`ChannelManager::create_channel`], or 0 for
+ /// an inbound channel. This will always be zero for objects serialized with LDK versions
+ /// prior to 0.0.102.
+ ///
+ /// [`ChannelManager::create_channel`]: crate::ln::channelmanager::ChannelManager::create_channel
+ user_channel_id: u64,