code: def run
        status = Status.new(name)
        runner = (async ? AsyncRunner : SyncRunner).new do
          t = Time.now
          begin
            @check.call(status)
          rescue Exception => e
            status.fail("#{name} error: #{e.inspect}")
          end
          status.time = Time.now - t
        end
        runner.filter_status = status
        runner
      end
docs: Create a new filter to run a status check. The name is used for display purposes.
   Run a status the status check. This method keeps track of the time it took to run
   the check and will trap any unexpected exceptions and report them as failures.