@UnstableApi
    public SELF datagramChannelStrategy(DnsNameResolverChannelStrategy datagramChannelStrategy) {
        requireNonNull(datagramChannelStrategy, "datagramChannelStrategy");
        this.datagramChannelStrategy = datagramChannelStrategy;
        return self();
    }
Set the strategy that is used to determine how a {@link DatagramChannel} is used by the resolver for
sending queries over UDP protocol.
core/src/main/java/com/linecorp/armeria/client/AbstractDnsResolverBuilder.java