public Optional<String> protocol() {
        return Optional.ofNullable(this.protocol);
    }
@return The IP protocol for this port. Supports &#34;TCP&#34;, &#34;UDP&#34;, and &#34;SCTP&#34;. Default is TCP.
sdk/java/src/main/java/com/pulumi/kubernetes/core/v1/outputs/ServicePortPatch.java