code: func (c *DOM) GetBoxModel(nodeId int, backendNodeId int, objectId string) (*DOMBoxModel, error) {
  	var v DOMGetBoxModelParams
  	v.NodeId = nodeId
  	v.BackendNodeId = backendNodeId
  	v.ObjectId = objectId
  	return c.GetBoxModelWithParams(&v)
  }
docs: // GetBoxModel - Returns boxes for the given node.
  // nodeId - Identifier of the node.
  // backendNodeId - Identifier of the backend node.
  // objectId - JavaScript object id of the node wrapper.
  // Returns -  model - Box model for the node.