def METHOD_NAME(self):
    try:
        tag = self.parent.tag
    except AttributeError:
        tag = self.node.tag
    return {
        "tag": tag,
        "id": self.id,
        "number": self.number,
        "xlink_href": self.xlink_href,
        "type": self.type,
        "is_supplementary_material": self.is_supplementary_material,
    }