def __repr__(self) -> str:
        """print the basic information of the transform.

        Returns:
            str: Formatted string.
        """
        repr_str = self.__class__.__name__
        repr_str += f'(num_keypoints={self.num_keypoints}, '\
                    f'mapping={self.mapping})'
        return repr_str
print the basic information of the transform.

        Returns:
            str: Formatted string.
        
mmpose/mmpose/datasets/transforms/converting.py