public void merge(Http2Settings other) {
        for (int i = 0; i < COUNT; i++) {
            if (!other.isSet(i)) {
                continue;
            }
            set(i, other.get(i));
        }
    }
Writes {@code other} into this. If any setting is populated by this and {@code other}, the
value and flags from {@code other} will be kept.
netbare-core/src/main/java/com/github/megatronking/netbare/http2/Http2Settings.java