def METHOD_NAME(self, mentions):
    return schema.node(
        "doc",
        {},
        [
            schema.node(
                "paragraph",
                {},
                [
                    schema.node(
                        "mention", {"id": mention.id, "label": mention.first_name}
                    )
                    for mention in mentions
                ],
            )
        ],
    ).to_json()