{
  "type": "File",
  "start": 0,
  "end": 69,
  "loc": {
    "start": {
      "line": 1,
      "column": 0
    },
    "end": {
      "line": 2,
      "column": 33
    }
  },
  "program": {
    "type": "Program",
    "start": 0,
    "end": 69,
    "loc": {
      "start": {
        "line": 1,
        "column": 0
      },
      "end": {
        "line": 2,
        "column": 33
      }
    },
    "sourceType": "module",
    "body": [
      {
        "type": "DeclareInterface",
        "start": 0,
        "end": 35,
        "loc": {
          "start": {
            "line": 1,
            "column": 0
          },
          "end": {
            "line": 1,
            "column": 35
          }
        },
        "id": {
          "type": "Identifier",
          "start": 18,
          "end": 19,
          "loc": {
            "start": {
              "line": 1,
              "column": 18
            },
            "end": {
              "line": 1,
              "column": 19
            },
            "identifierName": "I"
          },
          "name": "I"
        },
        "typeParameters": null,
        "extends": [],
        "mixins": [],
        "body": {
          "type": "ObjectTypeAnnotation",
          "start": 20,
          "end": 35,
          "loc": {
            "start": {
              "line": 1,
              "column": 20
            },
            "end": {
              "line": 1,
              "column": 35
            }
          },
          "callProperties": [],
          "properties": [
            {
              "type": "ObjectTypeProperty",
              "start": 22,
              "end": 33,
              "loc": {
                "start": {
                  "line": 1,
                  "column": 22
                },
                "end": {
                  "line": 1,
                  "column": 33
                }
              },
              "key": {
                "type": "Identifier",
                "start": 22,
                "end": 25,
                "loc": {
                  "start": {
                    "line": 1,
                    "column": 22
                  },
                  "end": {
                    "line": 1,
                    "column": 25
                  },
                  "identifierName": "foo"
                },
                "name": "foo"
              },
              "static": false,
              "kind": "init",
              "value": {
                "type": "StringTypeAnnotation",
                "start": 27,
                "end": 33,
                "loc": {
                  "start": {
                    "line": 1,
                    "column": 27
                  },
                  "end": {
                    "line": 1,
                    "column": 33
                  }
                }
              },
              "variance": null,
              "optional": false
            }
          ],
          "indexers": [],
          "exact": false
        }
      },
      {
        "type": "DeclareInterface",
        "start": 36,
        "end": 69,
        "loc": {
          "start": {
            "line": 2,
            "column": 0
          },
          "end": {
            "line": 2,
            "column": 33
          }
        },
        "id": {
          "type": "Identifier",
          "start": 54,
          "end": 55,
          "loc": {
            "start": {
              "line": 2,
              "column": 18
            },
            "end": {
              "line": 2,
              "column": 19
            },
            "identifierName": "I"
          },
          "name": "I"
        },
        "typeParameters": {
          "type": "TypeParameterDeclaration",
          "start": 55,
          "end": 58,
          "loc": {
            "start": {
              "line": 2,
              "column": 19
            },
            "end": {
              "line": 2,
              "column": 22
            }
          },
          "params": [
            {
              "type": "TypeParameter",
              "start": 56,
              "end": 57,
              "loc": {
                "start": {
                  "line": 2,
                  "column": 20
                },
                "end": {
                  "line": 2,
                  "column": 21
                }
              },
              "name": "T",
              "variance": null
            }
          ]
        },
        "extends": [],
        "mixins": [],
        "body": {
          "type": "ObjectTypeAnnotation",
          "start": 59,
          "end": 69,
          "loc": {
            "start": {
              "line": 2,
              "column": 23
            },
            "end": {
              "line": 2,
              "column": 33
            }
          },
          "callProperties": [],
          "properties": [
            {
              "type": "ObjectTypeProperty",
              "start": 61,
              "end": 67,
              "loc": {
                "start": {
                  "line": 2,
                  "column": 25
                },
                "end": {
                  "line": 2,
                  "column": 31
                }
              },
              "key": {
                "type": "Identifier",
                "start": 61,
                "end": 64,
                "loc": {
                  "start": {
                    "line": 2,
                    "column": 25
                  },
                  "end": {
                    "line": 2,
                    "column": 28
                  },
                  "identifierName": "foo"
                },
                "name": "foo"
              },
              "static": false,
              "kind": "init",
              "value": {
                "type": "GenericTypeAnnotation",
                "start": 66,
                "end": 67,
                "loc": {
                  "start": {
                    "line": 2,
                    "column": 30
                  },
                  "end": {
                    "line": 2,
                    "column": 31
                  }
                },
                "typeParameters": null,
                "id": {
                  "type": "Identifier",
                  "start": 66,
                  "end": 67,
                  "loc": {
                    "start": {
                      "line": 2,
                      "column": 30
                    },
                    "end": {
                      "line": 2,
                      "column": 31
                    },
                    "identifierName": "T"
                  },
                  "name": "T"
                }
              },
              "variance": null,
              "optional": false
            }
          ],
          "indexers": [],
          "exact": false
        }
      }
    ],
    "directives": []
  }
}