+ /// The difference in the CLTV value between incoming HTLCs and an outbound HTLC forwarded over
+ /// the channel this config applies to.
+ ///
+ /// This is analogous to [`ChannelHandshakeConfig::our_to_self_delay`] but applies to in-flight
+ /// HTLC balance when a channel appears on-chain whereas
+ /// [`ChannelHandshakeConfig::our_to_self_delay`] applies to the remaining
+ /// (non-HTLC-encumbered) balance.
+ ///
+ /// Thus, for HTLC-encumbered balances to be enforced on-chain when a channel is force-closed,
+ /// we (or one of our watchtowers) MUST be online to check for broadcast of the current
+ /// commitment transaction at least once per this many blocks (minus some margin to allow us
+ /// enough time to broadcast and confirm a transaction, possibly with time in between to RBF
+ /// the spending transaction).
+ ///
+ /// Default value: 72 (12 hours at an average of 6 blocks/hour).
+ /// Minimum value: [`MIN_CLTV_EXPIRY_DELTA`], any values less than this will be treated as
+ /// [`MIN_CLTV_EXPIRY_DELTA`] instead.
+ ///
+ /// [`MIN_CLTV_EXPIRY_DELTA`]: crate::ln::channelmanager::MIN_CLTV_EXPIRY_DELTA
+ pub cltv_expiry_delta: u16,