def extra_repr(self):
        """Set the extra representation of the module,
        which will come into effect when printing the model.
        """
        summary = "in={_in_feats}, out={_out_feats}"
        summary += ", normalization={_norm}"
        if "_activation" in self.__dict__:
            summary += ", activation={_activation}"
        return summary.format(**self.__dict__)
Set the extra representation of the module,
        which will come into effect when printing the model.
        
python/dgl/nn/tensorflow/conv/graphconv.py