def validate_metadata(self, existing):
        self.metadata = [
            c.name for c in self.values_axes if c.metadata is not None]
:return: bool
dataset/ETHPy150Open pydata/pandas/pandas/io/pytables.py/Table.validate_metadata--crossover with--dataset/ETHPy150Open GelaniNijraj/PyMaterial/MAnimations/MAnimator.py/MAnimator.started