code: def axes(self):
          
          out = self._axes[:]
          if self._horizontalAxis:
              out.append(self._horizontalAxis)
          if self._verticalAxis:
              out.append(self._verticalAxis)
          return out
docs: Returns all the axes that have been defined for this chart.
          
          :return     [<projexui.widgets.xchart.XChartAxis>, ..]