{
  "type": "CallExpression",
  "start": 0,
  "end": 38,
  "loc": {
    "start": {
      "line": 1,
      "column": 0
    },
    "end": {
      "line": 1,
      "column": 38
    }
  },
  "callee": {
    "type": "MemberExpression",
    "start": 0,
    "end": 29,
    "loc": {
      "start": {
        "line": 1,
        "column": 0
      },
      "end": {
        "line": 1,
        "column": 29
      }
    },
    "object": {
      "type": "ArrayExpression",
      "start": 0,
      "end": 21,
      "loc": {
        "start": {
          "line": 1,
          "column": 0
        },
        "end": {
          "line": 1,
          "column": 21
        }
      },
      "elements": [
        {
          "type": "StringLiteral",
          "start": 1,
          "end": 5,
          "loc": {
            "start": {
              "line": 1,
              "column": 1
            },
            "end": {
              "line": 1,
              "column": 5
            }
          },
          "extra": {
            "rawValue": "an",
            "raw": "\"an\""
          },
          "value": "an"
        },
        {
          "type": "StringLiteral",
          "start": 7,
          "end": 14,
          "loc": {
            "start": {
              "line": 1,
              "column": 7
            },
            "end": {
              "line": 1,
              "column": 14
            }
          },
          "extra": {
            "rawValue": "array",
            "raw": "\"array\""
          },
          "value": "array"
        },
        {
          "type": "StringLiteral",
          "start": 16,
          "end": 20,
          "loc": {
            "start": {
              "line": 1,
              "column": 16
            },
            "end": {
              "line": 1,
              "column": 20
            }
          },
          "extra": {
            "rawValue": "'s",
            "raw": "\"'s\""
          },
          "value": "'s"
        }
      ]
    },
    "property": {
      "type": "Identifier",
      "start": 22,
      "end": 29,
      "loc": {
        "start": {
          "line": 1,
          "column": 22
        },
        "end": {
          "line": 1,
          "column": 29
        },
        "identifierName": "indexOf"
      },
      "name": "indexOf"
    },
    "computed": false
  },
  "arguments": [
    {
      "type": "StringLiteral",
      "start": 30,
      "end": 37,
      "loc": {
        "start": {
          "line": 1,
          "column": 30
        },
        "end": {
          "line": 1,
          "column": 37
        }
      },
      "extra": {
        "rawValue": "index",
        "raw": "\"index\""
      },
      "value": "index"
    }
  ]
}