def METHOD_NAME(self):
    instance_info = InstanceInfo.from_json(
        instance_name=self.instance_name, json_info=self.json_string
    )
    self.assertThat(instance_info.name, Equals(self.instance_name))
    self.assertThat(instance_info.state, Equals("RUNNING"))
    self.assertThat(instance_info.image_release, Equals("16.04 LTS"))