code: function() {
      this.setHelpUrl(Blockly.Msg.VARIABLES_GET_HELPURL);
      this.setColour(330);
      this.appendDummyInput()
          .appendField(Plane.getMsg('Plane_getRows2'), 'title');
      this.setOutput(true, 'Number');
    }
docs: Block for second class row variable getter.