Create a Json-like object for a model.

        Parameters
        ----------
        model : ModelHandle

        Returns
        -------
        dict
            Json-like object representation

def to_json(self, model):
        """Create a Json-like object for a model.

        Parameters
        ----------
        model : ModelHandle

        Returns
        -------
        dict
            Json-like object representation
        """
        # Get the basic Json object from the super class
        obj = super(DefaultModelRegistry, self).to_json(model)
        # Add model parameter
        obj['parameters'] = [
            para.to_json() for para in model.parameters
        ]
        obj['outputs'] = model.outputs.to_json()
        return obj