@CustomType.Setter
        public Builder port(@Nullable Either<Integer,String> port) {

            this.port = port;
            return this;
        }
@return Optional.  The protocol (TCP, UDP, or SCTP) which traffic must match. If not specified, this field defaults to TCP.
sdk/java/src/main/java/com/pulumi/kubernetes/extensions/v1beta1/outputs/NetworkPolicyPortPatch.java