def with_timestamps(self, created_at=None, updated_at=None):
        if not created_at:
            created_at = self.created_at()

        if not updated_at:
            updated_at = self.updated_at()

        return self.with_pivot(created_at, updated_at)
Get the missing coordinate from the plane equation and the partial coordinates.
dataset/ETHPy150Open sdispater/orator/orator/orm/relations/belongs_to_many.py/BelongsToMany.with_timestamps--crossover with--dataset/ETHPy150Open tudelft3d/CityGML2OBJs/polygon3dmodule.py/get_height