class R<T> implements Serializable {

	private static final long serialVersionUID = 1L;

	@Getter
	@Setter
	private int code;

	@Getter
	@Setter
	private String msg;

	@Getter
	@Setter
	private T data;

	public static <T> R<T> ok() {
		return restResult(null, CommonConstants.SUCCESS, null);
	}

	public static <T> R<T> ok(T data) {
		return restResult(data, CommonConstants.SUCCESS, null);
	}

	public static <T> R<T> ok(T data, String msg) {
		return restResult(data, CommonConstants.SUCCESS, msg);
	}

	public static <T> R<T> failed() {
		return restResult(null, CommonConstants.FAIL, null);
	}

	public static <T> R<T> failed(String msg) {
		return restResult(null, CommonConstants.FAIL, msg);
	}

	public static <T> R<T> failed(T data) {
		return restResult(data, CommonConstants.FAIL, null);
	}

	public static <T> R<T> failed(T data, String msg) {
		return restResult(data, CommonConstants.FAIL, msg);
	}

	public static <T> R<T> restResult(T data, int code, String msg) {<FILL_FUNCTION_BODY>}

}

		R<T> apiResult = new R<>();
		apiResult.setCode(code);
		apiResult.setData(data);
		apiResult.setMsg(msg);
		return apiResult;
	
<no_super_class>