How to use the anyconfig.schema.validate function in anyconfig

def test_12_validate__ng(self):
        (ret, msg) = TT.validate({'a': "aaa"}, self.schema)
        self.assertTrue(msg)
        self.assertFalse(ret)

def test_42_gen_schema_and_validate(self):
        scm = _gen_scm(self.obj)
        self.assertTrue(TT.validate(self.obj, scm))

def test_10_validate(self):
        (ret, msg) = TT.validate(self.obj, self.schema)
        self.assertFalse(msg)
        self.assertTrue(ret)

def test_46_gen_schema_and_validate__complex_types(self):
        scm = TT.gen_schema(self.obj2)
        self.assertTrue(TT.validate(self.obj2, scm))

def _try_validate(cnf, schema, **options):
    """
    :param cnf: Mapping object represents configuration data
    :param schema: JSON schema object
    :param options: Keyword options passed to :func:`jsonschema.validate`

    :return: Given 'cnf' as it is if validation succeeds else None
    """
    valid = True
    if schema:
        (valid, msg) = validate(cnf, schema, **options)
        if msg:
            LOGGER.warning(msg)

    if valid:
        return cnf

    return None