How to use the kas.includehandler.IncludeHandler function in kas

def test_valid_ordering(self, monkeypatch):
        # disable schema validation for this test:
        monkeypatch.setattr(includehandler, 'CONFIGSCHEMA', {})
        header = self.__class__.header
        data = {'x.yml':
                header.format('''  includes: ["y.yml", "z.yml"]
v: {v1: x, v2: x}'''),
                os.path.abspath('y.yml'):
                header.format('''  includes: ["z.yml"]
v: {v2: y, v3: y, v5: y}'''),
                os.path.abspath('z.yml'): header.format('''
v: {v3: z, v4: z}''')}
        with patch_open(includehandler, dictionary=data):
            ginc = includehandler.IncludeHandler(['x.yml'])
            config, _ = ginc.get_config()
            keys = list(config['v'].keys())
            index = {keys[i]: i for i in range(len(keys))}

            # Check for vars in z.yml:
            assert index['v3'] < index['v1']
            assert index['v3'] < index['v2']
            assert index['v3'] < index['v5']
            assert index['v4'] < index['v1']
            assert index['v4'] < index['v2']
            assert index['v4'] < index['v5']

            # Check for vars in y.yml:
            assert index['v2'] < index['v1']
            assert index['v3'] < index['v1']
            assert index['v5'] < index['v1']

def util_include_content(self, testvector, monkeypatch):
        # disable schema validation for these tests:
        monkeypatch.setattr(includehandler, 'CONFIGSCHEMA', {})
        for test in testvector:
            with patch_open(includehandler, dictionary=test['fdict']):
                ginc = includehandler.IncludeHandler(['x.yml'])
                config, missing = ginc.get_config(repos=test['rdict'])

                # Remove header, because we dont want to compare it:
                config.pop('header')

                assert test['conf'] == config
                assert test['rmiss'] == missing

self._config = {}
        self.filenames = []

        for configfile in filename.split(':'):
            configfile = os.path.abspath(configfile)
            repo_path = Repo.get_root_path(os.path.dirname(configfile),
                                           fallback=False)
            if self.filenames == []:
                common_path = repo_path
            elif repo_path != common_path:
                raise IncludeException('All concatenated config files must '
                                       'belong to the same repository or all '
                                       'must be outside of versioning control')
            self.filenames.append(configfile)

        self.handler = IncludeHandler(self.filenames)
        self.repo_dict = self._get_repo_dict()