[
  {
    "endPosition": "10",
    "kind": "IDENTIFIER",
    "name": "undefined",
    "startPosition": "1"
  },
  {
    "endPosition": "14",
    "kind": "IDENTIFIER",
    "name": "NaN",
    "startPosition": "11"
  },
  {
    "endPosition": "16",
    "kind": "IDENTIFIER",
    "name": "a",
    "startPosition": "15"
  },
  {
    "endPosition": "20",
    "kind": "IDENTIFIER",
    "name": "a23",
    "startPosition": "17"
  },
  {
    "endPosition": "29",
    "kind": "IDENTIFIER",
    "name": "var_name",
    "startPosition": "21"
  },
  {
    "endPosition": "41",
    "kind": "IDENTIFIER",
    "name": "_underscore",
    "startPosition": "30"
  },
  {
    "endPosition": "49",
    "kind": "IDENTIFIER",
    "name": "$dollar",
    "startPosition": "42"
  }
]