# File lib/rufus/scheduler/jobs.rb, line 207
      def callback(meth, time)

        return true unless @scheduler.respond_to?(meth)

        arity = @scheduler.method(meth).arity
        args = [ self, time ][0, (arity < 0 ? 2 : arity)]

        @scheduler.send(meth, *args)
      end