code: public Rule Code() {
          return NodeSequence(
                  Test('`'),
                  FirstOf(
                          Code(Ticks(1)),
                          Code(Ticks(2)),
                          Code(Ticks(3)),
                          Code(Ticks(4)),
                          Code(Ticks(5))
                  )
          );
      }
docs: ************* CODE ****************