private static String fromTimeMillis(long value) {
        return StringValueConverter.INSTANCE.convertTimeMillis(value);
    }
Removes all the entries whose hash code equals {@code h} and whose name is equal to {@code name}.

@return the first value inserted, or {@code null} if there is no such entry.
core/src/main/java/com/linecorp/armeria/common/StringMultimap.java