{
  "type": "Script",
  "span": {
    "start": 18,
    "end": 72,
    "ctxt": 0
  },
  "body": [
    {
      "type": "FunctionDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 27,
          "end": 28,
          "ctxt": 0
        },
        "value": "f",
        "optional": false
      },
      "declare": false,
      "params": [
        {
          "type": "Parameter",
          "span": {
            "start": 29,
            "end": 38,
            "ctxt": 0
          },
          "decorators": [],
          "pat": {
            "type": "Identifier",
            "span": {
              "start": 29,
              "end": 38,
              "ctxt": 0
            },
            "value": "arguments",
            "optional": false,
            "typeAnnotation": null
          }
        }
      ],
      "decorators": [],
      "span": {
        "start": 18,
        "end": 72,
        "ctxt": 0
      },
      "body": {
        "type": "BlockStatement",
        "span": {
          "start": 40,
          "end": 72,
          "ctxt": 0
        },
        "stmts": [
          {
            "type": "VariableDeclaration",
            "span": {
              "start": 46,
              "end": 70,
              "ctxt": 0
            },
            "kind": "var",
            "declare": false,
            "declarations": [
              {
                "type": "VariableDeclarator",
                "span": {
                  "start": 50,
                  "end": 69,
                  "ctxt": 0
                },
                "id": {
                  "type": "Identifier",
                  "span": {
                    "start": 50,
                    "end": 51,
                    "ctxt": 0
                  },
                  "value": "a",
                  "optional": false,
                  "typeAnnotation": null
                },
                "init": {
                  "type": "ArrowFunctionExpression",
                  "span": {
                    "start": 54,
                    "end": 69,
                    "ctxt": 0
                  },
                  "params": [],
                  "body": {
                    "type": "Identifier",
                    "span": {
                      "start": 60,
                      "end": 69,
                      "ctxt": 0
                    },
                    "value": "arguments",
                    "optional": false
                  },
                  "async": false,
                  "generator": false,
                  "typeParameters": null,
                  "returnType": null
                },
                "definite": false
              }
            ]
          }
        ]
      },
      "generator": false,
      "async": false,
      "typeParameters": null,
      "returnType": null
    }
  ],
  "interpreter": null
}