Path API in JavaScript Diagram API control

<div id='diagram'></div>

let nodes: NodeModel[] = [{
id: 'node1', width: 100, height: 100, offsetX: 300, offsetY: 100,
  shape: { type: 'Path', data: 'M540.3643,137.9336L546.7973,159.7016L570.3633,159.7296'+
  'L550.7723,171.9366L558.9053,194.9966L540.3643,179.4996L521.8223,194.9966L529.9553,171.9366'+
  'L510.3633,159.7296L533.9313,159.7016L540.3643,137.9336z' }
}];
let diagram: Diagram = new Diagram({
...
nodes: nodes
...
});
diagram.appendTo('#diagram');