def _get_init_info(self):
    info = f'{self.__class__.__name__}: a={self.a}, b={self.b}, mean={self.mean}, std={self.std}, bias={self.bias}'
    return info
def _get_init_info(self):
    info = f'{self.__class__.__name__}: a={self.a}, b={self.b}, mean={self.mean}, std={self.std}, bias={self.bias}'
    return info