{
  "type": "File",
  "start":0,"end":95,"loc":{"start":{"line":1,"column":0},"end":{"line":6,"column":2}},
  "program": {
    "type": "Program",
    "start":0,"end":95,"loc":{"start":{"line":1,"column":0},"end":{"line":6,"column":2}},
    "sourceType": "module",
    "interpreter": null,
    "body": [
      {
        "type": "InterfaceDeclaration",
        "start":0,"end":94,"loc":{"start":{"line":1,"column":0},"end":{"line":6,"column":1}},
        "id": {
          "type": "Identifier",
          "start":10,"end":11,"loc":{"start":{"line":1,"column":10},"end":{"line":1,"column":11},"identifierName":"X"},
          "name": "X"
        },
        "typeParameters": null,
        "extends": [],
        "implements": [],
        "mixins": [],
        "body": {
          "type": "ObjectTypeAnnotation",
          "start":12,"end":94,"loc":{"start":{"line":1,"column":12},"end":{"line":6,"column":1}},
          "callProperties": [],
          "properties": [
            {
              "type": "ObjectTypeProperty",
              "start":16,"end":33,"loc":{"start":{"line":2,"column":2},"end":{"line":2,"column":19}},
              "key": {
                "type": "Identifier",
                "start":16,"end":22,"loc":{"start":{"line":2,"column":2},"end":{"line":2,"column":8},"identifierName":"foobar"},
                "name": "foobar"
              },
              "static": false,
              "proto": false,
              "kind": "init",
              "method": true,
              "value": {
                "type": "FunctionTypeAnnotation",
                "start":16,"end":33,"loc":{"start":{"line":2,"column":2},"end":{"line":2,"column":19}},
                "params": [],
                "rest": null,
                "typeParameters": {
                  "type": "TypeParameterDeclaration",
                  "start":22,"end":25,"loc":{"start":{"line":2,"column":8},"end":{"line":2,"column":11}},
                  "params": [
                    {
                      "type": "TypeParameter",
                      "start":23,"end":24,"loc":{"start":{"line":2,"column":9},"end":{"line":2,"column":10}},
                      "name": "T",
                      "variance": null
                    }
                  ]
                },
                "this": null,
                "returnType": {
                  "type": "VoidTypeAnnotation",
                  "start":29,"end":33,"loc":{"start":{"line":2,"column":15},"end":{"line":2,"column":19}}
                }
              },
              "optional": false
            },
            {
              "type": "ObjectTypeProperty",
              "start":37,"end":54,"loc":{"start":{"line":3,"column":2},"end":{"line":3,"column":19}},
              "key": {
                "type": "Identifier",
                "start":37,"end":43,"loc":{"start":{"line":3,"column":2},"end":{"line":3,"column":8},"identifierName":"delete"},
                "name": "delete"
              },
              "static": false,
              "proto": false,
              "kind": "init",
              "method": true,
              "value": {
                "type": "FunctionTypeAnnotation",
                "start":37,"end":54,"loc":{"start":{"line":3,"column":2},"end":{"line":3,"column":19}},
                "params": [],
                "rest": null,
                "typeParameters": {
                  "type": "TypeParameterDeclaration",
                  "start":43,"end":46,"loc":{"start":{"line":3,"column":8},"end":{"line":3,"column":11}},
                  "params": [
                    {
                      "type": "TypeParameter",
                      "start":44,"end":45,"loc":{"start":{"line":3,"column":9},"end":{"line":3,"column":10}},
                      "name": "T",
                      "variance": null
                    }
                  ]
                },
                "this": null,
                "returnType": {
                  "type": "VoidTypeAnnotation",
                  "start":50,"end":54,"loc":{"start":{"line":3,"column":15},"end":{"line":3,"column":19}}
                }
              },
              "optional": false
            },
            {
              "type": "ObjectTypeProperty",
              "start":58,"end":74,"loc":{"start":{"line":4,"column":2},"end":{"line":4,"column":18}},
              "key": {
                "type": "Identifier",
                "start":58,"end":63,"loc":{"start":{"line":4,"column":2},"end":{"line":4,"column":7},"identifierName":"yield"},
                "name": "yield"
              },
              "static": false,
              "proto": false,
              "kind": "init",
              "method": true,
              "value": {
                "type": "FunctionTypeAnnotation",
                "start":58,"end":74,"loc":{"start":{"line":4,"column":2},"end":{"line":4,"column":18}},
                "params": [],
                "rest": null,
                "typeParameters": {
                  "type": "TypeParameterDeclaration",
                  "start":63,"end":66,"loc":{"start":{"line":4,"column":7},"end":{"line":4,"column":10}},
                  "params": [
                    {
                      "type": "TypeParameter",
                      "start":64,"end":65,"loc":{"start":{"line":4,"column":8},"end":{"line":4,"column":9}},
                      "name": "T",
                      "variance": null
                    }
                  ]
                },
                "this": null,
                "returnType": {
                  "type": "VoidTypeAnnotation",
                  "start":70,"end":74,"loc":{"start":{"line":4,"column":14},"end":{"line":4,"column":18}}
                }
              },
              "optional": false
            },
            {
              "type": "ObjectTypeProperty",
              "start":78,"end":91,"loc":{"start":{"line":5,"column":2},"end":{"line":5,"column":15}},
              "key": {
                "type": "Identifier",
                "start":78,"end":80,"loc":{"start":{"line":5,"column":2},"end":{"line":5,"column":4},"identifierName":"do"},
                "name": "do"
              },
              "static": false,
              "proto": false,
              "kind": "init",
              "method": true,
              "value": {
                "type": "FunctionTypeAnnotation",
                "start":78,"end":91,"loc":{"start":{"line":5,"column":2},"end":{"line":5,"column":15}},
                "params": [],
                "rest": null,
                "typeParameters": {
                  "type": "TypeParameterDeclaration",
                  "start":80,"end":83,"loc":{"start":{"line":5,"column":4},"end":{"line":5,"column":7}},
                  "params": [
                    {
                      "type": "TypeParameter",
                      "start":81,"end":82,"loc":{"start":{"line":5,"column":5},"end":{"line":5,"column":6}},
                      "name": "T",
                      "variance": null
                    }
                  ]
                },
                "this": null,
                "returnType": {
                  "type": "VoidTypeAnnotation",
                  "start":87,"end":91,"loc":{"start":{"line":5,"column":11},"end":{"line":5,"column":15}}
                }
              },
              "optional": false
            }
          ],
          "indexers": [],
          "internalSlots": [],
          "exact": false
        }
      },
      {
        "type": "EmptyStatement",
        "start":94,"end":95,"loc":{"start":{"line":6,"column":1},"end":{"line":6,"column":2}}
      }
    ],
    "directives": []
  }
}