i need to parse the following json response.\[code\]{"attrs": { "width": 578, "height": 200},"nodeType": "Stage","children": [ { "attrs": {}, "nodeType": "Layer", "children": [ { "attrs": { "x": 289, "y": 100, "sides": 6, "radius": 70, "fill": "red", "stroke": "black", "strokeWidth": 4 }, "nodeType": "Shape", "shapeType": "RegularPolygon" } ] }]}\[/code\]for any help thanks..