{
  "type": "Program",
  "body": [
    {
      "type": "InterfaceDeclaration",
      "id": {
        "type": "Identifier",
        "name": "A",
        "range": [
          10,
          11
        ],
        "loc": {
          "start": {
            "line": 1,
            "column": 10
          },
          "end": {
            "line": 1,
            "column": 11
          }
        }
      },
      "typeParameters": {
        "type": "TypeParameterDeclaration",
        "params": [
          {
            "type": "Identifier",
            "name": "T",
            "range": [
              12,
              13
            ],
            "loc": {
              "start": {
                "line": 1,
                "column": 12
              },
              "end": {
                "line": 1,
                "column": 13
              }
            }
          }
        ],
        "range": [
          11,
          14
        ],
        "loc": {
          "start": {
            "line": 1,
            "column": 11
          },
          "end": {
            "line": 1,
            "column": 14
          }
        }
      },
      "body": {
        "type": "ObjectTypeAnnotation",
        "properties": [],
        "indexers": [],
        "callProperties": [],
        "range": [
          34,
          36
        ],
        "loc": {
          "start": {
            "line": 1,
            "column": 34
          },
          "end": {
            "line": 1,
            "column": 36
          }
        }
      },
      "extends": [
        {
          "type": "InterfaceExtends",
          "id": {
            "type": "Identifier",
            "name": "B",
            "range": [
              23,
              24
            ],
            "loc": {
              "start": {
                "line": 1,
                "column": 23
              },
              "end": {
                "line": 1,
                "column": 24
              }
            }
          },
          "typeParameters": {
            "type": "TypeParameterInstantiation",
            "params": [
              {
                "type": "GenericTypeAnnotation",
                "id": {
                  "type": "Identifier",
                  "name": "T",
                  "range": [
                    25,
                    26
                  ],
                  "loc": {
                    "start": {
                      "line": 1,
                      "column": 25
                    },
                    "end": {
                      "line": 1,
                      "column": 26
                    }
                  }
                },
                "typeParameters": null,
                "range": [
                  25,
                  26
                ],
                "loc": {
                  "start": {
                    "line": 1,
                    "column": 25
                  },
                  "end": {
                    "line": 1,
                    "column": 26
                  }
                }
              }
            ],
            "range": [
              24,
              27
            ],
            "loc": {
              "start": {
                "line": 1,
                "column": 24
              },
              "end": {
                "line": 1,
                "column": 27
              }
            }
          },
          "range": [
            23,
            27
          ],
          "loc": {
            "start": {
              "line": 1,
              "column": 23
            },
            "end": {
              "line": 1,
              "column": 27
            }
          }
        },
        {
          "type": "InterfaceExtends",
          "id": {
            "type": "Identifier",
            "name": "C",
            "range": [
              29,
              30
            ],
            "loc": {
              "start": {
                "line": 1,
                "column": 29
              },
              "end": {
                "line": 1,
                "column": 30
              }
            }
          },
          "typeParameters": {
            "type": "TypeParameterInstantiation",
            "params": [
              {
                "type": "GenericTypeAnnotation",
                "id": {
                  "type": "Identifier",
                  "name": "T",
                  "range": [
                    31,
                    32
                  ],
                  "loc": {
                    "start": {
                      "line": 1,
                      "column": 31
                    },
                    "end": {
                      "line": 1,
                      "column": 32
                    }
                  }
                },
                "typeParameters": null,
                "range": [
                  31,
                  32
                ],
                "loc": {
                  "start": {
                    "line": 1,
                    "column": 31
                  },
                  "end": {
                    "line": 1,
                    "column": 32
                  }
                }
              }
            ],
            "range": [
              30,
              33
            ],
            "loc": {
              "start": {
                "line": 1,
                "column": 30
              },
              "end": {
                "line": 1,
                "column": 33
              }
            }
          },
          "range": [
            29,
            33
          ],
          "loc": {
            "start": {
              "line": 1,
              "column": 29
            },
            "end": {
              "line": 1,
              "column": 33
            }
          }
        }
      ],
      "range": [
        0,
        36
      ],
      "loc": {
        "start": {
          "line": 1,
          "column": 0
        },
        "end": {
          "line": 1,
          "column": 36
        }
      }
    }
  ]
}