{
  "type": "File",
  "start":0,"end":26,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":26}},
  "errors": [
    "SyntaxError: Type argument list cannot be empty. (1:21)"
  ],
  "program": {
    "type": "Program",
    "start":0,"end":26,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":26}},
    "sourceType": "module",
    "interpreter": null,
    "body": [
      {
        "type": "TSInterfaceDeclaration",
        "start":0,"end":26,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":26}},
        "id": {
          "type": "Identifier",
          "start":10,"end":11,"loc":{"start":{"line":1,"column":10},"end":{"line":1,"column":11},"identifierName":"A"},
          "name": "A"
        },
        "extends": [
          {
            "type": "TSExpressionWithTypeArguments",
            "start":20,"end":23,"loc":{"start":{"line":1,"column":20},"end":{"line":1,"column":23}},
            "expression": {
              "type": "Identifier",
              "start":20,"end":21,"loc":{"start":{"line":1,"column":20},"end":{"line":1,"column":21},"identifierName":"B"},
              "name": "B"
            },
            "typeParameters": {
              "type": "TSTypeParameterInstantiation",
              "start":21,"end":23,"loc":{"start":{"line":1,"column":21},"end":{"line":1,"column":23}},
              "params": []
            }
          }
        ],
        "body": {
          "type": "TSInterfaceBody",
          "start":24,"end":26,"loc":{"start":{"line":1,"column":24},"end":{"line":1,"column":26}},
          "body": []
        }
      }
    ],
    "directives": []
  }
}