{
  "type": "File",
  "start":0,"end":23,"loc":{"start":{"line":1,"column":0},"end":{"line":2,"column":12}},
  "errors": [
    "SyntaxError: Identifier 'A' has already been declared (2:5)"
  ],
  "program": {
    "type": "Program",
    "start":0,"end":23,"loc":{"start":{"line":1,"column":0},"end":{"line":2,"column":12}},
    "sourceType": "module",
    "interpreter": null,
    "body": [
      {
        "type": "VariableDeclaration",
        "start":0,"end":10,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":10}},
        "declarations": [
          {
            "type": "VariableDeclarator",
            "start":4,"end":9,"loc":{"start":{"line":1,"column":4},"end":{"line":1,"column":9}},
            "id": {
              "type": "Identifier",
              "start":4,"end":5,"loc":{"start":{"line":1,"column":4},"end":{"line":1,"column":5},"identifierName":"A"},
              "name": "A"
            },
            "init": {
              "type": "NumericLiteral",
              "start":8,"end":9,"loc":{"start":{"line":1,"column":8},"end":{"line":1,"column":9}},
              "extra": {
                "rawValue": 1,
                "raw": "1"
              },
              "value": 1
            }
          }
        ],
        "kind": "let"
      },
      {
        "type": "TypeAlias",
        "start":11,"end":23,"loc":{"start":{"line":2,"column":0},"end":{"line":2,"column":12}},
        "id": {
          "type": "Identifier",
          "start":16,"end":17,"loc":{"start":{"line":2,"column":5},"end":{"line":2,"column":6},"identifierName":"A"},
          "name": "A"
        },
        "typeParameters": null,
        "right": {
          "type": "ObjectTypeAnnotation",
          "start":20,"end":22,"loc":{"start":{"line":2,"column":9},"end":{"line":2,"column":11}},
          "callProperties": [],
          "properties": [],
          "indexers": [],
          "internalSlots": [],
          "exact": false,
          "inexact": false
        }
      }
    ],
    "directives": []
  }
}