code: func (c *Overlay) HighlightNode(highlightConfig *OverlayHighlightConfig, nodeId int, backendNodeId int, objectId string, selector string) (*gcdmessage.ChromeResponse, error) {
  	var v OverlayHighlightNodeParams
  	v.HighlightConfig = highlightConfig
  	v.NodeId = nodeId
  	v.BackendNodeId = backendNodeId
  	v.ObjectId = objectId
  	v.Selector = selector
  	return c.HighlightNodeWithParams(&v)
  }
docs: // HighlightNode - Highlights DOM node with given id or with the given JavaScript object wrapper. Either nodeId or objectId must be specified.
  // highlightConfig - A descriptor for the highlight appearance.
  // nodeId - Identifier of the node to highlight.
  // backendNodeId - Identifier of the backend node to highlight.
  // objectId - JavaScript object id of the node to be highlighted.
  // selector - Selectors to highlight relevant nodes.