code: function SimilaritySearchV3Node (config) {
      var node = this, b = false, feature = config['image-feature'];
      RED.nodes.createNode(this, config);
      node.config = config;
  
      node.on('input', function (msg) {
        var params = {};
  
        node.status({});
        // so there is at most 1 temp file at a time (did not found a better solution...)
        temp.cleanup();
  
        b = verifyServiceCredentials(node, msg);
        if (!b) {
          return;
        }
        execute(feature,params,node,msg);
      });
    }
docs: This is the Watson Visual Recognition V3 Node