{
  "type": "File",
  "start": 0,
  "end": 17,
  "loc": {
    "start": {
      "line": 1,
      "column": 0
    },
    "end": {
      "line": 1,
      "column": 17
    }
  },
  "program": {
    "type": "Program",
    "start": 0,
    "end": 17,
    "loc": {
      "start": {
        "line": 1,
        "column": 0
      },
      "end": {
        "line": 1,
        "column": 17
      }
    },
    "sourceType": "script",
    "body": [
      {
        "type": "ExpressionStatement",
        "start": 0,
        "end": 17,
        "loc": {
          "start": {
            "line": 1,
            "column": 0
          },
          "end": {
            "line": 1,
            "column": 17
          }
        },
        "expression": {
          "type": "CallExpression",
          "start": 0,
          "end": 17,
          "loc": {
            "start": {
              "line": 1,
              "column": 0
            },
            "end": {
              "line": 1,
              "column": 17
            }
          },
          "callee": {
            "type": "Identifier",
            "start": 0,
            "end": 3,
            "loc": {
              "start": {
                "line": 1,
                "column": 0
              },
              "end": {
                "line": 1,
                "column": 3
              },
              "identifierName": "foo"
            },
            "name": "foo"
          },
          "arguments": [
            {
              "type": "ArrowFunctionExpression",
              "start": 4,
              "end": 16,
              "loc": {
                "start": {
                  "line": 1,
                  "column": 4
                },
                "end": {
                  "line": 1,
                  "column": 16
                }
              },
              "id": null,
              "generator": false,
              "expression": false,
              "async": false,
              "params": [
                {
                  "type": "Identifier",
                  "start": 5,
                  "end": 6,
                  "loc": {
                    "start": {
                      "line": 1,
                      "column": 5
                    },
                    "end": {
                      "line": 1,
                      "column": 6
                    },
                    "identifierName": "x"
                  },
                  "name": "x"
                },
                {
                  "type": "Identifier",
                  "start": 8,
                  "end": 9,
                  "loc": {
                    "start": {
                      "line": 1,
                      "column": 8
                    },
                    "end": {
                      "line": 1,
                      "column": 9
                    },
                    "identifierName": "y"
                  },
                  "name": "y"
                }
              ],
              "body": {
                "type": "BlockStatement",
                "start": 14,
                "end": 16,
                "loc": {
                  "start": {
                    "line": 1,
                    "column": 14
                  },
                  "end": {
                    "line": 1,
                    "column": 16
                  }
                },
                "body": [],
                "directives": []
              }
            }
          ]
        }
      }
    ],
    "directives": []
  }
}