def GetAxis(self, position):
    # Not using setdefault here just in case, to avoid calling the Axis()
    # constructor needlessly
    if position in self._axes:
      return self._axes[position][0]
    else:
      axis = Axis()
      self._axes[position] = [axis]
      return axis
Get or create the first available axis in the given position.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/_internal/graphy/common.py/BaseChart.GetAxis