@FormatMethod
    static HttpResponse of(MediaType mediaType, @FormatString String format, Object... args) {
        return of(HttpStatus.OK, mediaType, format, args);
    }
Creates a new HTTP response of OK status with the content.
The content of the response is formatted by {@link String#format(Locale, String, Object...)} with
{@linkplain Locale#ENGLISH English locale}.

@param mediaType the {@link MediaType} of the response content
@param format {@linkplain Formatter the format string} of the response content
@param args the arguments referenced by the format specifiers in the format string
core/src/main/java/com/linecorp/armeria/common/HttpResponse.java