code: public AtomixClusterBuilder withProperty(String key, String value) {
      config.getNodeConfig().setProperty(key, value);
      return this;
    }
docs: Sets a property of the member.
  <p>
  The properties are arbitrary settings that will be replicated along with this node's member information. Properties
  can be used to enable other nodes to determine metadata about this node.
  
  @param key   the property key to set
  @param value the property value to set
  @return the cluster builder
  @throws NullPointerException if the property is null