code: function (axisDimName, axisIndex) {
          if (axisDimName == null && axisIndex == null) {
              var axisProxy = this.findRepresentativeAxisProxy();
              if (axisProxy) {
                  return axisProxy.getDataValueWindow();
              }
          }
          else {
              return this.getAxisProxy(axisDimName, axisIndex).getDataValueWindow();
          }
      }
docs: @public
  For example, chart.getModel().getComponent('dataZoom').getValueRange('y', 0);
  
  @param {string} [axisDimName]
  @param {number} [axisIndex]
  @return {Array.<number>} [startValue, endValue] value can only be '-' or finite number.