Constant PIN_ON_NOTICE 

pub const PIN_ON_NOTICE: &str = "pinned: this session stays loaded (never parked or idle-ended, \
     and the daemon will not idle-exit while it is pinned) and comes back after daemon restarts. \
     /pin off to undo.";

KeepWarm{on: true}’s notice (/pin on, daemon pin, --keep-warm).