public String q;

    public String sort;

    @ValidateTypeFailure
    public Integer start;

    @ValidateTypeFailure
    public Integer offset;

    @ValidateTypeFailure
    public Integer pn;

    @ValidateTypeFailure
    public Integer num;

    public String[] lang;

    public Map<String, String[]> fields = new HashMap<>();

    public Map<String, String[]> as = new HashMap<>();