class AbstractTxCommandArg extends IgniteDataTransferObject {
        // No-op.
    }

    /**
     * Provides text descrition of a cluster node.
     *
     * @param node Node.
     */
    static String nodeDescription(ClusterNode node) {<FILL_FUNCTION_BODY>

        return node.getClass().getSimpleName() + " [id=" + node.id() +
            ", addrs=" + node.addresses() +
            ", order=" + node.order() +
            ", ver=" + node.version() +
            ", isClient=" + node.isClient() +
            ", consistentId=" + node.consistentId() +
            "]";
    
<methods>public Command<?,?> command(java.lang.String) ,public Iterator<Entry<java.lang.String,Command<?,?>>> commands() <variables>private final Map<java.lang.String,Command<?,?>> commands