static QueryParams of(String name, Object value) {
        return builder().addObject(name, value).build();
    }
Returns a new {@link QueryParams} with the specified parameter. The value is converted into
a {@link String} as explained in <a href="#object-values">Specifying a non-String parameter value</a>.
core/src/main/java/com/linecorp/armeria/common/QueryParams.java