public static String escape(String value) {
        for (int i = 0; i < value.length(); i++) {
            if (isEscapingChar(value.charAt(i))) {
                return doEscape(value.getBytes(StandardCharsets.UTF_8), i);
            }
        }
        return value;
    }
Escape the provided unicode {@link String} into ascii.
grpc-protocol/src/main/java/com/linecorp/armeria/common/grpc/protocol/StatusMessageEscaper.java