def AddAxis(self, position, axis):
    self._axes.setdefault(position, []).append(axis)
    return axis
Returns timestamp of the given file
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/_internal/graphy/common.py/BaseChart.AddAxis--crossover with--dataset/ETHPy150Open frappe/frappe/frappe/utils/__init__.py/get_file_timestamp