def delUrlScheme(self, url):
        if url in self._urlSchemes:
            del self._urlSchemes[url]
L{text.isMultiline} returns C{True} if the string has a newline in it.
dataset/ETHPy150Open abarmat/python-oembed/oembed/__init__.py/OEmbedEndpoint.delUrlScheme--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/test/test_text.py/LineTest.test_isMultiline