def METHOD_NAME(self):
    no_vars_defined = {}
    session = FakeSession(no_vars_defined)
    stream, error_stream, config_get = self.create_command(session)
    rc = config_get(args=['region'], parsed_globals=None)
    rendered = stream.getvalue()
    # If a config value does not exist, we don't print any output.
    self.assertEqual(rendered, '')
    # And we exit with an rc of 1.
    self.assertEqual(rc, 1)