The id value returned by setInterval. Will fail if not an integer.
function heave ()
osrs.print("HEAVE")
return true
end
-- This will cause HEAVE to print out every 2 seconds and will generate a callback id since one is not already given
heaveId = osrs.setInterval(heave, 2)
-- The HEAVE printing will cease as the call back id returned by setInterval is used to clear the interval
osrs.clearInterval(heaveId)
Clears an interval created by setInterval. Will do nothing if the id passed in is invalid.