@material.setter
    def material(self, new_material):
        if new_material.lower() not in MATERIALS:
            msg = "'material' is not valid. Choose from:\n{}"
            raise ValueError(msg.format('\n'.join(MATERIALS)))
        else:
            self._material = new_material
Sets the material attribute of the shape, i.e. its shine,
dataset/ETHPy150Open pydy/pydy/pydy/viz/shapes.py/Shape.material