{
  "type": "Script",
  "span": {
    "start": 19,
    "end": 638,
    "ctxt": 0
  },
  "body": [
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 19,
        "end": 54,
        "ctxt": 0
      },
      "kind": "const",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 33,
            "end": 54,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 33,
              "end": 34,
              "ctxt": 0
            },
            "value": "a",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 34,
                "end": 54,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsUnionType",
                "span": {
                  "start": 36,
                  "end": 54,
                  "ctxt": 0
                },
                "types": [
                  {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 36,
                      "end": 42,
                      "ctxt": 0
                    },
                    "kind": "string"
                  },
                  {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 45,
                      "end": 54,
                      "ctxt": 0
                    },
                    "kind": "undefined"
                  }
                ]
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 55,
        "end": 90,
        "ctxt": 0
      },
      "kind": "const",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 69,
            "end": 90,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 69,
              "end": 70,
              "ctxt": 0
            },
            "value": "b",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 70,
                "end": 90,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsUnionType",
                "span": {
                  "start": 72,
                  "end": 90,
                  "ctxt": 0
                },
                "types": [
                  {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 72,
                      "end": 78,
                      "ctxt": 0
                    },
                    "kind": "string"
                  },
                  {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 81,
                      "end": 90,
                      "ctxt": 0
                    },
                    "kind": "undefined"
                  }
                ]
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 91,
        "end": 126,
        "ctxt": 0
      },
      "kind": "const",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 105,
            "end": 126,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 105,
              "end": 106,
              "ctxt": 0
            },
            "value": "c",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 106,
                "end": 126,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsUnionType",
                "span": {
                  "start": 108,
                  "end": 126,
                  "ctxt": 0
                },
                "types": [
                  {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 108,
                      "end": 114,
                      "ctxt": 0
                    },
                    "kind": "string"
                  },
                  {
                    "type": "TsKeywordType",
                    "span": {
                      "start": 117,
                      "end": 126,
                      "ctxt": 0
                    },
                    "kind": "undefined"
                  }
                ]
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 156,
        "end": 168,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 156,
          "end": 167,
          "ctxt": 0
        },
        "operator": "||",
        "left": {
          "type": "BinaryExpression",
          "span": {
            "start": 156,
            "end": 162,
            "ctxt": 0
          },
          "operator": "??",
          "left": {
            "type": "Identifier",
            "span": {
              "start": 156,
              "end": 157,
              "ctxt": 0
            },
            "value": "a",
            "optional": false
          },
          "right": {
            "type": "Identifier",
            "span": {
              "start": 161,
              "end": 162,
              "ctxt": 0
            },
            "value": "b",
            "optional": false
          }
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 166,
            "end": 167,
            "ctxt": 0
          },
          "value": "c",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 198,
        "end": 210,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 198,
          "end": 209,
          "ctxt": 0
        },
        "operator": "??",
        "left": {
          "type": "BinaryExpression",
          "span": {
            "start": 198,
            "end": 204,
            "ctxt": 0
          },
          "operator": "||",
          "left": {
            "type": "Identifier",
            "span": {
              "start": 198,
              "end": 199,
              "ctxt": 0
            },
            "value": "a",
            "optional": false
          },
          "right": {
            "type": "Identifier",
            "span": {
              "start": 203,
              "end": 204,
              "ctxt": 0
            },
            "value": "b",
            "optional": false
          }
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 208,
            "end": 209,
            "ctxt": 0
          },
          "value": "c",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 240,
        "end": 252,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 240,
          "end": 251,
          "ctxt": 0
        },
        "operator": "??",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 240,
            "end": 241,
            "ctxt": 0
          },
          "value": "a",
          "optional": false
        },
        "right": {
          "type": "BinaryExpression",
          "span": {
            "start": 245,
            "end": 251,
            "ctxt": 0
          },
          "operator": "&&",
          "left": {
            "type": "Identifier",
            "span": {
              "start": 245,
              "end": 246,
              "ctxt": 0
            },
            "value": "b",
            "optional": false
          },
          "right": {
            "type": "Identifier",
            "span": {
              "start": 250,
              "end": 251,
              "ctxt": 0
            },
            "value": "c",
            "optional": false
          }
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 282,
        "end": 294,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 282,
          "end": 293,
          "ctxt": 0
        },
        "operator": "??",
        "left": {
          "type": "BinaryExpression",
          "span": {
            "start": 282,
            "end": 288,
            "ctxt": 0
          },
          "operator": "&&",
          "left": {
            "type": "Identifier",
            "span": {
              "start": 282,
              "end": 283,
              "ctxt": 0
            },
            "value": "a",
            "optional": false
          },
          "right": {
            "type": "Identifier",
            "span": {
              "start": 287,
              "end": 288,
              "ctxt": 0
            },
            "value": "b",
            "optional": false
          }
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 292,
            "end": 293,
            "ctxt": 0
          },
          "value": "c",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 323,
        "end": 337,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 323,
          "end": 336,
          "ctxt": 0
        },
        "operator": "??",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 323,
            "end": 324,
            "ctxt": 0
          },
          "value": "a",
          "optional": false
        },
        "right": {
          "type": "ParenthesisExpression",
          "span": {
            "start": 328,
            "end": 336,
            "ctxt": 0
          },
          "expression": {
            "type": "BinaryExpression",
            "span": {
              "start": 329,
              "end": 335,
              "ctxt": 0
            },
            "operator": "||",
            "left": {
              "type": "Identifier",
              "span": {
                "start": 329,
                "end": 330,
                "ctxt": 0
              },
              "value": "b",
              "optional": false
            },
            "right": {
              "type": "Identifier",
              "span": {
                "start": 334,
                "end": 335,
                "ctxt": 0
              },
              "value": "c",
              "optional": false
            }
          }
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 366,
        "end": 380,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 366,
          "end": 379,
          "ctxt": 0
        },
        "operator": "||",
        "left": {
          "type": "ParenthesisExpression",
          "span": {
            "start": 366,
            "end": 374,
            "ctxt": 0
          },
          "expression": {
            "type": "BinaryExpression",
            "span": {
              "start": 367,
              "end": 373,
              "ctxt": 0
            },
            "operator": "??",
            "left": {
              "type": "Identifier",
              "span": {
                "start": 367,
                "end": 368,
                "ctxt": 0
              },
              "value": "a",
              "optional": false
            },
            "right": {
              "type": "Identifier",
              "span": {
                "start": 372,
                "end": 373,
                "ctxt": 0
              },
              "value": "b",
              "optional": false
            }
          }
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 378,
            "end": 379,
            "ctxt": 0
          },
          "value": "c",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 409,
        "end": 423,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 409,
          "end": 422,
          "ctxt": 0
        },
        "operator": "??",
        "left": {
          "type": "ParenthesisExpression",
          "span": {
            "start": 409,
            "end": 417,
            "ctxt": 0
          },
          "expression": {
            "type": "BinaryExpression",
            "span": {
              "start": 410,
              "end": 416,
              "ctxt": 0
            },
            "operator": "||",
            "left": {
              "type": "Identifier",
              "span": {
                "start": 410,
                "end": 411,
                "ctxt": 0
              },
              "value": "a",
              "optional": false
            },
            "right": {
              "type": "Identifier",
              "span": {
                "start": 415,
                "end": 416,
                "ctxt": 0
              },
              "value": "b",
              "optional": false
            }
          }
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 421,
            "end": 422,
            "ctxt": 0
          },
          "value": "c",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 452,
        "end": 466,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 452,
          "end": 465,
          "ctxt": 0
        },
        "operator": "||",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 452,
            "end": 453,
            "ctxt": 0
          },
          "value": "a",
          "optional": false
        },
        "right": {
          "type": "ParenthesisExpression",
          "span": {
            "start": 457,
            "end": 465,
            "ctxt": 0
          },
          "expression": {
            "type": "BinaryExpression",
            "span": {
              "start": 458,
              "end": 464,
              "ctxt": 0
            },
            "operator": "??",
            "left": {
              "type": "Identifier",
              "span": {
                "start": 458,
                "end": 459,
                "ctxt": 0
              },
              "value": "b",
              "optional": false
            },
            "right": {
              "type": "Identifier",
              "span": {
                "start": 463,
                "end": 464,
                "ctxt": 0
              },
              "value": "c",
              "optional": false
            }
          }
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 495,
        "end": 509,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 495,
          "end": 508,
          "ctxt": 0
        },
        "operator": "??",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 495,
            "end": 496,
            "ctxt": 0
          },
          "value": "a",
          "optional": false
        },
        "right": {
          "type": "ParenthesisExpression",
          "span": {
            "start": 500,
            "end": 508,
            "ctxt": 0
          },
          "expression": {
            "type": "BinaryExpression",
            "span": {
              "start": 501,
              "end": 507,
              "ctxt": 0
            },
            "operator": "&&",
            "left": {
              "type": "Identifier",
              "span": {
                "start": 501,
                "end": 502,
                "ctxt": 0
              },
              "value": "b",
              "optional": false
            },
            "right": {
              "type": "Identifier",
              "span": {
                "start": 506,
                "end": 507,
                "ctxt": 0
              },
              "value": "c",
              "optional": false
            }
          }
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 538,
        "end": 552,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 538,
          "end": 551,
          "ctxt": 0
        },
        "operator": "&&",
        "left": {
          "type": "ParenthesisExpression",
          "span": {
            "start": 538,
            "end": 546,
            "ctxt": 0
          },
          "expression": {
            "type": "BinaryExpression",
            "span": {
              "start": 539,
              "end": 545,
              "ctxt": 0
            },
            "operator": "??",
            "left": {
              "type": "Identifier",
              "span": {
                "start": 539,
                "end": 540,
                "ctxt": 0
              },
              "value": "a",
              "optional": false
            },
            "right": {
              "type": "Identifier",
              "span": {
                "start": 544,
                "end": 545,
                "ctxt": 0
              },
              "value": "b",
              "optional": false
            }
          }
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 550,
            "end": 551,
            "ctxt": 0
          },
          "value": "c",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 581,
        "end": 595,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 581,
          "end": 594,
          "ctxt": 0
        },
        "operator": "??",
        "left": {
          "type": "ParenthesisExpression",
          "span": {
            "start": 581,
            "end": 589,
            "ctxt": 0
          },
          "expression": {
            "type": "BinaryExpression",
            "span": {
              "start": 582,
              "end": 588,
              "ctxt": 0
            },
            "operator": "&&",
            "left": {
              "type": "Identifier",
              "span": {
                "start": 582,
                "end": 583,
                "ctxt": 0
              },
              "value": "a",
              "optional": false
            },
            "right": {
              "type": "Identifier",
              "span": {
                "start": 587,
                "end": 588,
                "ctxt": 0
              },
              "value": "b",
              "optional": false
            }
          }
        },
        "right": {
          "type": "Identifier",
          "span": {
            "start": 593,
            "end": 594,
            "ctxt": 0
          },
          "value": "c",
          "optional": false
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "span": {
        "start": 624,
        "end": 638,
        "ctxt": 0
      },
      "expression": {
        "type": "BinaryExpression",
        "span": {
          "start": 624,
          "end": 637,
          "ctxt": 0
        },
        "operator": "&&",
        "left": {
          "type": "Identifier",
          "span": {
            "start": 624,
            "end": 625,
            "ctxt": 0
          },
          "value": "a",
          "optional": false
        },
        "right": {
          "type": "ParenthesisExpression",
          "span": {
            "start": 629,
            "end": 637,
            "ctxt": 0
          },
          "expression": {
            "type": "BinaryExpression",
            "span": {
              "start": 630,
              "end": 636,
              "ctxt": 0
            },
            "operator": "??",
            "left": {
              "type": "Identifier",
              "span": {
                "start": 630,
                "end": 631,
                "ctxt": 0
              },
              "value": "b",
              "optional": false
            },
            "right": {
              "type": "Identifier",
              "span": {
                "start": 635,
                "end": 636,
                "ctxt": 0
              },
              "value": "c",
              "optional": false
            }
          }
        }
      }
    }
  ],
  "interpreter": null
}