{
  "type": "File",
  "start":0,"end":66,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
  "program": {
    "type": "Program",
    "start":0,"end":66,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
    "sourceType": "module",
    "interpreter": null,
    "body": [
      {
        "type": "ClassDeclaration",
        "start":0,"end":66,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
        "id": {
          "type": "Identifier",
          "start":6,"end":7,"loc":{"start":{"line":1,"column":6},"end":{"line":1,"column":7},"identifierName":"A"},
          "name": "A"
        },
        "superClass": {
          "type": "Identifier",
          "start":16,"end":17,"loc":{"start":{"line":1,"column":16},"end":{"line":1,"column":17},"identifierName":"B"},
          "name": "B"
        },
        "body": {
          "type": "ClassBody",
          "start":18,"end":66,"loc":{"start":{"line":1,"column":18},"end":{"line":3,"column":1}},
          "body": [
            {
              "type": "TSDeclareMethod",
              "start":22,"end":64,"loc":{"start":{"line":2,"column":2},"end":{"line":2,"column":44}},
              "static": false,
              "key": {
                "type": "Identifier",
                "start":28,"end":34,"loc":{"start":{"line":2,"column":8},"end":{"line":2,"column":14},"identifierName":"method"},
                "name": "method"
              },
              "computed": false,
              "kind": "method",
              "optional": true,
              "id": null,
              "generator": false,
              "async": true,
              "params": [
                {
                  "type": "Identifier",
                  "start":36,"end":47,"loc":{"start":{"line":2,"column":16},"end":{"line":2,"column":27},"identifierName":"val"},
                  "name": "val",
                  "typeAnnotation": {
                    "type": "TSTypeAnnotation",
                    "start":39,"end":47,"loc":{"start":{"line":2,"column":19},"end":{"line":2,"column":27}},
                    "typeAnnotation": {
                      "type": "TSStringKeyword",
                      "start":41,"end":47,"loc":{"start":{"line":2,"column":21},"end":{"line":2,"column":27}}
                    }
                  }
                }
              ],
              "returnType": {
                "type": "TSTypeAnnotation",
                "start":48,"end":63,"loc":{"start":{"line":2,"column":28},"end":{"line":2,"column":43}},
                "typeAnnotation": {
                  "type": "TSTypeReference",
                  "start":50,"end":63,"loc":{"start":{"line":2,"column":30},"end":{"line":2,"column":43}},
                  "typeName": {
                    "type": "Identifier",
                    "start":50,"end":57,"loc":{"start":{"line":2,"column":30},"end":{"line":2,"column":37},"identifierName":"Promise"},
                    "name": "Promise"
                  },
                  "typeParameters": {
                    "type": "TSTypeParameterInstantiation",
                    "start":57,"end":63,"loc":{"start":{"line":2,"column":37},"end":{"line":2,"column":43}},
                    "params": [
                      {
                        "type": "TSVoidKeyword",
                        "start":58,"end":62,"loc":{"start":{"line":2,"column":38},"end":{"line":2,"column":42}}
                      }
                    ]
                  }
                }
              }
            }
          ]
        }
      }
    ],
    "directives": []
  }
}