def METHOD_NAME(self):
    dt = self.DT.get_instance("date")
    # expected fragment, based on conversations about the from_rdf method
    jf = [{"@value": "2018-12-18", "@type": "http://www.w3.org/2001/XMLSchema#dateTime"}]
    resp = dt.from_rdf(jf)
    self.assertTrue(resp == "2018-12-18")