{
  "type": "File",
  "start":0,"end":21,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":21}},
  "program": {
    "type": "Program",
    "start":0,"end":21,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":21}},
    "sourceType": "script",
    "interpreter": null,
    "body": [
      {
        "type": "FunctionDeclaration",
        "start":0,"end":21,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":21}},
        "id": {
          "type": "Identifier",
          "start":9,"end":10,"loc":{"start":{"line":1,"column":9},"end":{"line":1,"column":10},"identifierName":"f"},
          "name": "f"
        },
        "generator": false,
        "async": false,
        "params": [],
        "body": {
          "type": "Placeholder",
          "start":13,"end":21,"loc":{"start":{"line":1,"column":13},"end":{"line":1,"column":21}},
          "name": {
            "type": "Identifier",
            "start":15,"end":19,"loc":{"start":{"line":1,"column":15},"end":{"line":1,"column":19},"identifierName":"BODY"},
            "name": "BODY"
          },
          "expectedNode": "BlockStatement"
        }
      }
    ],
    "directives": []
  }
}