{
  "type": "File",
  "start":0,"end":12,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":12}},
  "program": {
    "type": "Program",
    "start":0,"end":12,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":12}},
    "sourceType": "script",
    "interpreter": null,
    "body": [
      {
        "type": "ExpressionStatement",
        "start":0,"end":12,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":12}},
        "expression": {
          "type": "ChainExpression",
          "start":0,"end":12,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":12}},
          "expression": {
            "type": "MemberExpression",
            "start":0,"end":12,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":12}},
            "object": {
              "type": "CallExpression",
              "start":0,"end":7,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":7}},
              "callee": {
                "type": "Identifier",
                "start":0,"end":3,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":3},"identifierName":"foo"},
                "name": "foo"
              },
              "optional": true,
              "arguments": []
            },
            "property": {
              "type": "Identifier",
              "start":9,"end":12,"loc":{"start":{"line":1,"column":9},"end":{"line":1,"column":12},"identifierName":"bar"},
              "name": "bar"
            },
            "computed": false,
            "optional": true
          }
        }
      }
    ]
  }
}