public ListTopicsOptions listInternal(boolean listInternal) {
        this.listInternal = listInternal;
        return this;
    }
Set whether we should list internal topics.

@param listInternal  Whether we should list internal topics.  null means to use
                     the default.
@return              This ListTopicsOptions object.
clients/src/main/java/org/apache/kafka/clients/admin/ListTopicsOptions.java