{
  "type": "Script",
  "span": {
    "start": 41,
    "end": 577,
    "ctxt": 0
  },
  "body": [
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 41,
        "end": 64,
        "ctxt": 0
      },
      "kind": "var",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 53,
            "end": 63,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 53,
              "end": 54,
              "ctxt": 0
            },
            "value": "a",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 54,
                "end": 63,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 56,
                  "end": 63,
                  "ctxt": 0
                },
                "kind": "boolean"
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 65,
        "end": 97,
        "ctxt": 0
      },
      "kind": "var",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 77,
            "end": 96,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 77,
              "end": 78,
              "ctxt": 0
            },
            "value": "p",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 78,
                "end": 96,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 80,
                  "end": 96,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 80,
                    "end": 87,
                    "ctxt": 0
                  },
                  "value": "Promise",
                  "optional": false
                },
                "typeParams": {
                  "type": "TsTypeParameterInstantiation",
                  "span": {
                    "start": 87,
                    "end": 96,
                    "ctxt": 0
                  },
                  "params": [
                    {
                      "type": "TsKeywordType",
                      "span": {
                        "start": 88,
                        "end": 95,
                        "ctxt": 0
                      },
                      "kind": "boolean"
                    }
                  ]
                }
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "FunctionDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 115,
          "end": 117,
          "ctxt": 0
        },
        "value": "fn",
        "optional": false
      },
      "declare": true,
      "params": [
        {
          "type": "Parameter",
          "span": {
            "start": 118,
            "end": 131,
            "ctxt": 0
          },
          "decorators": [],
          "pat": {
            "type": "Identifier",
            "span": {
              "start": 118,
              "end": 131,
              "ctxt": 0
            },
            "value": "arg0",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 122,
                "end": 131,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 124,
                  "end": 131,
                  "ctxt": 0
                },
                "kind": "boolean"
              }
            }
          }
        },
        {
          "type": "Parameter",
          "span": {
            "start": 133,
            "end": 146,
            "ctxt": 0
          },
          "decorators": [],
          "pat": {
            "type": "Identifier",
            "span": {
              "start": 133,
              "end": 146,
              "ctxt": 0
            },
            "value": "arg1",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 137,
                "end": 146,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 139,
                  "end": 146,
                  "ctxt": 0
                },
                "kind": "boolean"
              }
            }
          }
        },
        {
          "type": "Parameter",
          "span": {
            "start": 148,
            "end": 161,
            "ctxt": 0
          },
          "decorators": [],
          "pat": {
            "type": "Identifier",
            "span": {
              "start": 148,
              "end": 161,
              "ctxt": 0
            },
            "value": "arg2",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 152,
                "end": 161,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 154,
                  "end": 161,
                  "ctxt": 0
                },
                "kind": "boolean"
              }
            }
          }
        }
      ],
      "decorators": [],
      "span": {
        "start": 98,
        "end": 169,
        "ctxt": 0
      },
      "body": null,
      "generator": false,
      "async": false,
      "typeParameters": null,
      "returnType": {
        "type": "TsTypeAnnotation",
        "span": {
          "start": 162,
          "end": 168,
          "ctxt": 0
        },
        "typeAnnotation": {
          "type": "TsKeywordType",
          "span": {
            "start": 164,
            "end": 168,
            "ctxt": 0
          },
          "kind": "void"
        }
      }
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 170,
        "end": 244,
        "ctxt": 0
      },
      "kind": "var",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 182,
            "end": 243,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 182,
              "end": 183,
              "ctxt": 0
            },
            "value": "o",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 183,
                "end": 243,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeLiteral",
                "span": {
                  "start": 185,
                  "end": 243,
                  "ctxt": 0
                },
                "members": [
                  {
                    "type": "TsMethodSignature",
                    "span": {
                      "start": 187,
                      "end": 241,
                      "ctxt": 0
                    },
                    "readonly": false,
                    "key": {
                      "type": "Identifier",
                      "span": {
                        "start": 187,
                        "end": 189,
                        "ctxt": 0
                      },
                      "value": "fn",
                      "optional": false
                    },
                    "computed": false,
                    "optional": false,
                    "params": [
                      {
                        "type": "Identifier",
                        "span": {
                          "start": 190,
                          "end": 203,
                          "ctxt": 0
                        },
                        "value": "arg0",
                        "optional": false,
                        "typeAnnotation": {
                          "type": "TsTypeAnnotation",
                          "span": {
                            "start": 194,
                            "end": 203,
                            "ctxt": 0
                          },
                          "typeAnnotation": {
                            "type": "TsKeywordType",
                            "span": {
                              "start": 196,
                              "end": 203,
                              "ctxt": 0
                            },
                            "kind": "boolean"
                          }
                        }
                      },
                      {
                        "type": "Identifier",
                        "span": {
                          "start": 205,
                          "end": 218,
                          "ctxt": 0
                        },
                        "value": "arg1",
                        "optional": false,
                        "typeAnnotation": {
                          "type": "TsTypeAnnotation",
                          "span": {
                            "start": 209,
                            "end": 218,
                            "ctxt": 0
                          },
                          "typeAnnotation": {
                            "type": "TsKeywordType",
                            "span": {
                              "start": 211,
                              "end": 218,
                              "ctxt": 0
                            },
                            "kind": "boolean"
                          }
                        }
                      },
                      {
                        "type": "Identifier",
                        "span": {
                          "start": 220,
                          "end": 233,
                          "ctxt": 0
                        },
                        "value": "arg2",
                        "optional": false,
                        "typeAnnotation": {
                          "type": "TsTypeAnnotation",
                          "span": {
                            "start": 224,
                            "end": 233,
                            "ctxt": 0
                          },
                          "typeAnnotation": {
                            "type": "TsKeywordType",
                            "span": {
                              "start": 226,
                              "end": 233,
                              "ctxt": 0
                            },
                            "kind": "boolean"
                          }
                        }
                      }
                    ],
                    "typeAnn": {
                      "type": "TsTypeAnnotation",
                      "span": {
                        "start": 234,
                        "end": 240,
                        "ctxt": 0
                      },
                      "typeAnnotation": {
                        "type": "TsKeywordType",
                        "span": {
                          "start": 236,
                          "end": 240,
                          "ctxt": 0
                        },
                        "kind": "void"
                      }
                    },
                    "typeParams": null
                  }
                ]
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 245,
        "end": 328,
        "ctxt": 0
      },
      "kind": "var",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 257,
            "end": 327,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 257,
              "end": 260,
              "ctxt": 0
            },
            "value": "pfn",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 260,
                "end": 327,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 262,
                  "end": 327,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 262,
                    "end": 269,
                    "ctxt": 0
                  },
                  "value": "Promise",
                  "optional": false
                },
                "typeParams": {
                  "type": "TsTypeParameterInstantiation",
                  "span": {
                    "start": 269,
                    "end": 327,
                    "ctxt": 0
                  },
                  "params": [
                    {
                      "type": "TsTypeLiteral",
                      "span": {
                        "start": 270,
                        "end": 326,
                        "ctxt": 0
                      },
                      "members": [
                        {
                          "type": "TsCallSignatureDeclaration",
                          "span": {
                            "start": 272,
                            "end": 324,
                            "ctxt": 0
                          },
                          "params": [
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 273,
                                "end": 286,
                                "ctxt": 0
                              },
                              "value": "arg0",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 277,
                                  "end": 286,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 279,
                                    "end": 286,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            },
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 288,
                                "end": 301,
                                "ctxt": 0
                              },
                              "value": "arg1",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 292,
                                  "end": 301,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 294,
                                    "end": 301,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            },
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 303,
                                "end": 316,
                                "ctxt": 0
                              },
                              "value": "arg2",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 307,
                                  "end": 316,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 309,
                                    "end": 316,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            }
                          ],
                          "typeAnnotation": {
                            "type": "TsTypeAnnotation",
                            "span": {
                              "start": 317,
                              "end": 323,
                              "ctxt": 0
                            },
                            "typeAnnotation": {
                              "type": "TsKeywordType",
                              "span": {
                                "start": 319,
                                "end": 323,
                                "ctxt": 0
                              },
                              "kind": "void"
                            }
                          },
                          "typeParams": null
                        }
                      ]
                    }
                  ]
                }
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 329,
        "end": 413,
        "ctxt": 0
      },
      "kind": "var",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 341,
            "end": 412,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 341,
              "end": 343,
              "ctxt": 0
            },
            "value": "po",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 343,
                "end": 412,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 345,
                  "end": 412,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 345,
                    "end": 352,
                    "ctxt": 0
                  },
                  "value": "Promise",
                  "optional": false
                },
                "typeParams": {
                  "type": "TsTypeParameterInstantiation",
                  "span": {
                    "start": 352,
                    "end": 412,
                    "ctxt": 0
                  },
                  "params": [
                    {
                      "type": "TsTypeLiteral",
                      "span": {
                        "start": 353,
                        "end": 411,
                        "ctxt": 0
                      },
                      "members": [
                        {
                          "type": "TsMethodSignature",
                          "span": {
                            "start": 355,
                            "end": 409,
                            "ctxt": 0
                          },
                          "readonly": false,
                          "key": {
                            "type": "Identifier",
                            "span": {
                              "start": 355,
                              "end": 357,
                              "ctxt": 0
                            },
                            "value": "fn",
                            "optional": false
                          },
                          "computed": false,
                          "optional": false,
                          "params": [
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 358,
                                "end": 371,
                                "ctxt": 0
                              },
                              "value": "arg0",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 362,
                                  "end": 371,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 364,
                                    "end": 371,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            },
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 373,
                                "end": 386,
                                "ctxt": 0
                              },
                              "value": "arg1",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 377,
                                  "end": 386,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 379,
                                    "end": 386,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            },
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 388,
                                "end": 401,
                                "ctxt": 0
                              },
                              "value": "arg2",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 392,
                                  "end": 401,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 394,
                                    "end": 401,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            }
                          ],
                          "typeAnn": {
                            "type": "TsTypeAnnotation",
                            "span": {
                              "start": 402,
                              "end": 408,
                              "ctxt": 0
                            },
                            "typeAnnotation": {
                              "type": "TsKeywordType",
                              "span": {
                                "start": 404,
                                "end": 408,
                                "ctxt": 0
                              },
                              "kind": "void"
                            }
                          },
                          "typeParams": null
                        }
                      ]
                    }
                  ]
                }
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "FunctionDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 431,
          "end": 437,
          "ctxt": 0
        },
        "value": "before",
        "optional": false
      },
      "declare": true,
      "params": [],
      "decorators": [],
      "span": {
        "start": 414,
        "end": 446,
        "ctxt": 0
      },
      "body": null,
      "generator": false,
      "async": false,
      "typeParameters": null,
      "returnType": {
        "type": "TsTypeAnnotation",
        "span": {
          "start": 439,
          "end": 445,
          "ctxt": 0
        },
        "typeAnnotation": {
          "type": "TsKeywordType",
          "span": {
            "start": 441,
            "end": 445,
            "ctxt": 0
          },
          "kind": "void"
        }
      }
    },
    {
      "type": "FunctionDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 464,
          "end": 469,
          "ctxt": 0
        },
        "value": "after",
        "optional": false
      },
      "declare": true,
      "params": [],
      "decorators": [],
      "span": {
        "start": 447,
        "end": 478,
        "ctxt": 0
      },
      "body": null,
      "generator": false,
      "async": false,
      "typeParameters": null,
      "returnType": {
        "type": "TsTypeAnnotation",
        "span": {
          "start": 471,
          "end": 477,
          "ctxt": 0
        },
        "typeAnnotation": {
          "type": "TsKeywordType",
          "span": {
            "start": 473,
            "end": 477,
            "ctxt": 0
          },
          "kind": "void"
        }
      }
    },
    {
      "type": "FunctionDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 494,
          "end": 498,
          "ctxt": 0
        },
        "value": "func",
        "optional": false
      },
      "declare": false,
      "params": [],
      "decorators": [],
      "span": {
        "start": 479,
        "end": 577,
        "ctxt": 0
      },
      "body": {
        "type": "BlockStatement",
        "span": {
          "start": 516,
          "end": 577,
          "ctxt": 0
        },
        "stmts": [
          {
            "type": "ExpressionStatement",
            "span": {
              "start": 522,
              "end": 531,
              "ctxt": 0
            },
            "expression": {
              "type": "CallExpression",
              "span": {
                "start": 522,
                "end": 530,
                "ctxt": 0
              },
              "callee": {
                "type": "Identifier",
                "span": {
                  "start": 522,
                  "end": 528,
                  "ctxt": 0
                },
                "value": "before",
                "optional": false
              },
              "arguments": [],
              "typeArguments": null
            }
          },
          {
            "type": "VariableDeclaration",
            "span": {
              "start": 536,
              "end": 562,
              "ctxt": 0
            },
            "kind": "var",
            "declare": false,
            "declarations": [
              {
                "type": "VariableDeclarator",
                "span": {
                  "start": 540,
                  "end": 561,
                  "ctxt": 0
                },
                "id": {
                  "type": "Identifier",
                  "span": {
                    "start": 540,
                    "end": 541,
                    "ctxt": 0
                  },
                  "value": "b",
                  "optional": false,
                  "typeAnnotation": null
                },
                "init": {
                  "type": "CallExpression",
                  "span": {
                    "start": 544,
                    "end": 561,
                    "ctxt": 0
                  },
                  "callee": {
                    "type": "Identifier",
                    "span": {
                      "start": 544,
                      "end": 546,
                      "ctxt": 0
                    },
                    "value": "fn",
                    "optional": false
                  },
                  "arguments": [
                    {
                      "spread": null,
                      "expression": {
                        "type": "Identifier",
                        "span": {
                          "start": 547,
                          "end": 548,
                          "ctxt": 0
                        },
                        "value": "a",
                        "optional": false
                      }
                    },
                    {
                      "spread": null,
                      "expression": {
                        "type": "AwaitExpression",
                        "span": {
                          "start": 550,
                          "end": 557,
                          "ctxt": 0
                        },
                        "argument": {
                          "type": "Identifier",
                          "span": {
                            "start": 556,
                            "end": 557,
                            "ctxt": 0
                          },
                          "value": "p",
                          "optional": false
                        }
                      }
                    },
                    {
                      "spread": null,
                      "expression": {
                        "type": "Identifier",
                        "span": {
                          "start": 559,
                          "end": 560,
                          "ctxt": 0
                        },
                        "value": "a",
                        "optional": false
                      }
                    }
                  ],
                  "typeArguments": null
                },
                "definite": false
              }
            ]
          },
          {
            "type": "ExpressionStatement",
            "span": {
              "start": 567,
              "end": 575,
              "ctxt": 0
            },
            "expression": {
              "type": "CallExpression",
              "span": {
                "start": 567,
                "end": 574,
                "ctxt": 0
              },
              "callee": {
                "type": "Identifier",
                "span": {
                  "start": 567,
                  "end": 572,
                  "ctxt": 0
                },
                "value": "after",
                "optional": false
              },
              "arguments": [],
              "typeArguments": null
            }
          }
        ]
      },
      "generator": false,
      "async": true,
      "typeParameters": null,
      "returnType": {
        "type": "TsTypeAnnotation",
        "span": {
          "start": 500,
          "end": 515,
          "ctxt": 0
        },
        "typeAnnotation": {
          "type": "TsTypeReference",
          "span": {
            "start": 502,
            "end": 515,
            "ctxt": 0
          },
          "typeName": {
            "type": "Identifier",
            "span": {
              "start": 502,
              "end": 509,
              "ctxt": 0
            },
            "value": "Promise",
            "optional": false
          },
          "typeParams": {
            "type": "TsTypeParameterInstantiation",
            "span": {
              "start": 509,
              "end": 515,
              "ctxt": 0
            },
            "params": [
              {
                "type": "TsKeywordType",
                "span": {
                  "start": 510,
                  "end": 514,
                  "ctxt": 0
                },
                "kind": "void"
              }
            ]
          }
        }
      }
    }
  ],
  "interpreter": null
}