code: function (graph, opts, params) {
      if (graph.children.length == 0) return '';
  
      function getRels(node) {
        var rels = [];
        node.children.forEach(function(childNode) {
          rels.push('(' + node.name + ')-[__rel_' + childNode.name + ':' + childNode.comp.rel + ']->(' + childNode.name + ')');
          rels.push.apply(rels, getRels(childNode));
        });
        return rels;
      }
      
      return 'CREATE UNIQUE ' + getRels(graph).join(',');
    }
docs: get the CREATE UNIQUE statement of a write query this will create the required relationships