{
  "type": "Script",
  "span": {
    "start": 44,
    "end": 576,
    "ctxt": 0
  },
  "body": [
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 44,
        "end": 67,
        "ctxt": 0
      },
      "kind": "var",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 56,
            "end": 66,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 56,
              "end": 57,
              "ctxt": 0
            },
            "value": "a",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 57,
                "end": 66,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 59,
                  "end": 66,
                  "ctxt": 0
                },
                "kind": "boolean"
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 68,
        "end": 100,
        "ctxt": 0
      },
      "kind": "var",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 80,
            "end": 99,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 80,
              "end": 81,
              "ctxt": 0
            },
            "value": "p",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 81,
                "end": 99,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 83,
                  "end": 99,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 83,
                    "end": 90,
                    "ctxt": 0
                  },
                  "value": "Promise",
                  "optional": false
                },
                "typeParams": {
                  "type": "TsTypeParameterInstantiation",
                  "span": {
                    "start": 90,
                    "end": 99,
                    "ctxt": 0
                  },
                  "params": [
                    {
                      "type": "TsKeywordType",
                      "span": {
                        "start": 91,
                        "end": 98,
                        "ctxt": 0
                      },
                      "kind": "boolean"
                    }
                  ]
                }
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "FunctionDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 118,
          "end": 120,
          "ctxt": 0
        },
        "value": "fn",
        "optional": false
      },
      "declare": true,
      "params": [
        {
          "type": "Parameter",
          "span": {
            "start": 121,
            "end": 134,
            "ctxt": 0
          },
          "decorators": [],
          "pat": {
            "type": "Identifier",
            "span": {
              "start": 121,
              "end": 134,
              "ctxt": 0
            },
            "value": "arg0",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 125,
                "end": 134,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 127,
                  "end": 134,
                  "ctxt": 0
                },
                "kind": "boolean"
              }
            }
          }
        },
        {
          "type": "Parameter",
          "span": {
            "start": 136,
            "end": 149,
            "ctxt": 0
          },
          "decorators": [],
          "pat": {
            "type": "Identifier",
            "span": {
              "start": 136,
              "end": 149,
              "ctxt": 0
            },
            "value": "arg1",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 140,
                "end": 149,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 142,
                  "end": 149,
                  "ctxt": 0
                },
                "kind": "boolean"
              }
            }
          }
        },
        {
          "type": "Parameter",
          "span": {
            "start": 151,
            "end": 164,
            "ctxt": 0
          },
          "decorators": [],
          "pat": {
            "type": "Identifier",
            "span": {
              "start": 151,
              "end": 164,
              "ctxt": 0
            },
            "value": "arg2",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 155,
                "end": 164,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsKeywordType",
                "span": {
                  "start": 157,
                  "end": 164,
                  "ctxt": 0
                },
                "kind": "boolean"
              }
            }
          }
        }
      ],
      "decorators": [],
      "span": {
        "start": 101,
        "end": 172,
        "ctxt": 0
      },
      "body": null,
      "generator": false,
      "async": false,
      "typeParameters": null,
      "returnType": {
        "type": "TsTypeAnnotation",
        "span": {
          "start": 165,
          "end": 171,
          "ctxt": 0
        },
        "typeAnnotation": {
          "type": "TsKeywordType",
          "span": {
            "start": 167,
            "end": 171,
            "ctxt": 0
          },
          "kind": "void"
        }
      }
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 173,
        "end": 247,
        "ctxt": 0
      },
      "kind": "var",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 185,
            "end": 246,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 185,
              "end": 186,
              "ctxt": 0
            },
            "value": "o",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 186,
                "end": 246,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeLiteral",
                "span": {
                  "start": 188,
                  "end": 246,
                  "ctxt": 0
                },
                "members": [
                  {
                    "type": "TsMethodSignature",
                    "span": {
                      "start": 190,
                      "end": 244,
                      "ctxt": 0
                    },
                    "readonly": false,
                    "key": {
                      "type": "Identifier",
                      "span": {
                        "start": 190,
                        "end": 192,
                        "ctxt": 0
                      },
                      "value": "fn",
                      "optional": false
                    },
                    "computed": false,
                    "optional": false,
                    "params": [
                      {
                        "type": "Identifier",
                        "span": {
                          "start": 193,
                          "end": 206,
                          "ctxt": 0
                        },
                        "value": "arg0",
                        "optional": false,
                        "typeAnnotation": {
                          "type": "TsTypeAnnotation",
                          "span": {
                            "start": 197,
                            "end": 206,
                            "ctxt": 0
                          },
                          "typeAnnotation": {
                            "type": "TsKeywordType",
                            "span": {
                              "start": 199,
                              "end": 206,
                              "ctxt": 0
                            },
                            "kind": "boolean"
                          }
                        }
                      },
                      {
                        "type": "Identifier",
                        "span": {
                          "start": 208,
                          "end": 221,
                          "ctxt": 0
                        },
                        "value": "arg1",
                        "optional": false,
                        "typeAnnotation": {
                          "type": "TsTypeAnnotation",
                          "span": {
                            "start": 212,
                            "end": 221,
                            "ctxt": 0
                          },
                          "typeAnnotation": {
                            "type": "TsKeywordType",
                            "span": {
                              "start": 214,
                              "end": 221,
                              "ctxt": 0
                            },
                            "kind": "boolean"
                          }
                        }
                      },
                      {
                        "type": "Identifier",
                        "span": {
                          "start": 223,
                          "end": 236,
                          "ctxt": 0
                        },
                        "value": "arg2",
                        "optional": false,
                        "typeAnnotation": {
                          "type": "TsTypeAnnotation",
                          "span": {
                            "start": 227,
                            "end": 236,
                            "ctxt": 0
                          },
                          "typeAnnotation": {
                            "type": "TsKeywordType",
                            "span": {
                              "start": 229,
                              "end": 236,
                              "ctxt": 0
                            },
                            "kind": "boolean"
                          }
                        }
                      }
                    ],
                    "typeAnn": {
                      "type": "TsTypeAnnotation",
                      "span": {
                        "start": 237,
                        "end": 243,
                        "ctxt": 0
                      },
                      "typeAnnotation": {
                        "type": "TsKeywordType",
                        "span": {
                          "start": 239,
                          "end": 243,
                          "ctxt": 0
                        },
                        "kind": "void"
                      }
                    },
                    "typeParams": null
                  }
                ]
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 248,
        "end": 331,
        "ctxt": 0
      },
      "kind": "var",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 260,
            "end": 330,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 260,
              "end": 263,
              "ctxt": 0
            },
            "value": "pfn",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 263,
                "end": 330,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 265,
                  "end": 330,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 265,
                    "end": 272,
                    "ctxt": 0
                  },
                  "value": "Promise",
                  "optional": false
                },
                "typeParams": {
                  "type": "TsTypeParameterInstantiation",
                  "span": {
                    "start": 272,
                    "end": 330,
                    "ctxt": 0
                  },
                  "params": [
                    {
                      "type": "TsTypeLiteral",
                      "span": {
                        "start": 273,
                        "end": 329,
                        "ctxt": 0
                      },
                      "members": [
                        {
                          "type": "TsCallSignatureDeclaration",
                          "span": {
                            "start": 275,
                            "end": 327,
                            "ctxt": 0
                          },
                          "params": [
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 276,
                                "end": 289,
                                "ctxt": 0
                              },
                              "value": "arg0",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 280,
                                  "end": 289,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 282,
                                    "end": 289,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            },
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 291,
                                "end": 304,
                                "ctxt": 0
                              },
                              "value": "arg1",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 295,
                                  "end": 304,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 297,
                                    "end": 304,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            },
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 306,
                                "end": 319,
                                "ctxt": 0
                              },
                              "value": "arg2",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 310,
                                  "end": 319,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 312,
                                    "end": 319,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            }
                          ],
                          "typeAnnotation": {
                            "type": "TsTypeAnnotation",
                            "span": {
                              "start": 320,
                              "end": 326,
                              "ctxt": 0
                            },
                            "typeAnnotation": {
                              "type": "TsKeywordType",
                              "span": {
                                "start": 322,
                                "end": 326,
                                "ctxt": 0
                              },
                              "kind": "void"
                            }
                          },
                          "typeParams": null
                        }
                      ]
                    }
                  ]
                }
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "VariableDeclaration",
      "span": {
        "start": 332,
        "end": 416,
        "ctxt": 0
      },
      "kind": "var",
      "declare": true,
      "declarations": [
        {
          "type": "VariableDeclarator",
          "span": {
            "start": 344,
            "end": 415,
            "ctxt": 0
          },
          "id": {
            "type": "Identifier",
            "span": {
              "start": 344,
              "end": 346,
              "ctxt": 0
            },
            "value": "po",
            "optional": false,
            "typeAnnotation": {
              "type": "TsTypeAnnotation",
              "span": {
                "start": 346,
                "end": 415,
                "ctxt": 0
              },
              "typeAnnotation": {
                "type": "TsTypeReference",
                "span": {
                  "start": 348,
                  "end": 415,
                  "ctxt": 0
                },
                "typeName": {
                  "type": "Identifier",
                  "span": {
                    "start": 348,
                    "end": 355,
                    "ctxt": 0
                  },
                  "value": "Promise",
                  "optional": false
                },
                "typeParams": {
                  "type": "TsTypeParameterInstantiation",
                  "span": {
                    "start": 355,
                    "end": 415,
                    "ctxt": 0
                  },
                  "params": [
                    {
                      "type": "TsTypeLiteral",
                      "span": {
                        "start": 356,
                        "end": 414,
                        "ctxt": 0
                      },
                      "members": [
                        {
                          "type": "TsMethodSignature",
                          "span": {
                            "start": 358,
                            "end": 412,
                            "ctxt": 0
                          },
                          "readonly": false,
                          "key": {
                            "type": "Identifier",
                            "span": {
                              "start": 358,
                              "end": 360,
                              "ctxt": 0
                            },
                            "value": "fn",
                            "optional": false
                          },
                          "computed": false,
                          "optional": false,
                          "params": [
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 361,
                                "end": 374,
                                "ctxt": 0
                              },
                              "value": "arg0",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 365,
                                  "end": 374,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 367,
                                    "end": 374,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            },
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 376,
                                "end": 389,
                                "ctxt": 0
                              },
                              "value": "arg1",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 380,
                                  "end": 389,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 382,
                                    "end": 389,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            },
                            {
                              "type": "Identifier",
                              "span": {
                                "start": 391,
                                "end": 404,
                                "ctxt": 0
                              },
                              "value": "arg2",
                              "optional": false,
                              "typeAnnotation": {
                                "type": "TsTypeAnnotation",
                                "span": {
                                  "start": 395,
                                  "end": 404,
                                  "ctxt": 0
                                },
                                "typeAnnotation": {
                                  "type": "TsKeywordType",
                                  "span": {
                                    "start": 397,
                                    "end": 404,
                                    "ctxt": 0
                                  },
                                  "kind": "boolean"
                                }
                              }
                            }
                          ],
                          "typeAnn": {
                            "type": "TsTypeAnnotation",
                            "span": {
                              "start": 405,
                              "end": 411,
                              "ctxt": 0
                            },
                            "typeAnnotation": {
                              "type": "TsKeywordType",
                              "span": {
                                "start": 407,
                                "end": 411,
                                "ctxt": 0
                              },
                              "kind": "void"
                            }
                          },
                          "typeParams": null
                        }
                      ]
                    }
                  ]
                }
              }
            }
          },
          "init": null,
          "definite": false
        }
      ]
    },
    {
      "type": "FunctionDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 434,
          "end": 440,
          "ctxt": 0
        },
        "value": "before",
        "optional": false
      },
      "declare": true,
      "params": [],
      "decorators": [],
      "span": {
        "start": 417,
        "end": 449,
        "ctxt": 0
      },
      "body": null,
      "generator": false,
      "async": false,
      "typeParameters": null,
      "returnType": {
        "type": "TsTypeAnnotation",
        "span": {
          "start": 442,
          "end": 448,
          "ctxt": 0
        },
        "typeAnnotation": {
          "type": "TsKeywordType",
          "span": {
            "start": 444,
            "end": 448,
            "ctxt": 0
          },
          "kind": "void"
        }
      }
    },
    {
      "type": "FunctionDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 467,
          "end": 472,
          "ctxt": 0
        },
        "value": "after",
        "optional": false
      },
      "declare": true,
      "params": [],
      "decorators": [],
      "span": {
        "start": 450,
        "end": 481,
        "ctxt": 0
      },
      "body": null,
      "generator": false,
      "async": false,
      "typeParameters": null,
      "returnType": {
        "type": "TsTypeAnnotation",
        "span": {
          "start": 474,
          "end": 480,
          "ctxt": 0
        },
        "typeAnnotation": {
          "type": "TsKeywordType",
          "span": {
            "start": 476,
            "end": 480,
            "ctxt": 0
          },
          "kind": "void"
        }
      }
    },
    {
      "type": "FunctionDeclaration",
      "identifier": {
        "type": "Identifier",
        "span": {
          "start": 497,
          "end": 501,
          "ctxt": 0
        },
        "value": "func",
        "optional": false
      },
      "declare": false,
      "params": [],
      "decorators": [],
      "span": {
        "start": 482,
        "end": 576,
        "ctxt": 0
      },
      "body": {
        "type": "BlockStatement",
        "span": {
          "start": 519,
          "end": 576,
          "ctxt": 0
        },
        "stmts": [
          {
            "type": "ExpressionStatement",
            "span": {
              "start": 525,
              "end": 534,
              "ctxt": 0
            },
            "expression": {
              "type": "CallExpression",
              "span": {
                "start": 525,
                "end": 533,
                "ctxt": 0
              },
              "callee": {
                "type": "Identifier",
                "span": {
                  "start": 525,
                  "end": 531,
                  "ctxt": 0
                },
                "value": "before",
                "optional": false
              },
              "arguments": [],
              "typeArguments": null
            }
          },
          {
            "type": "VariableDeclaration",
            "span": {
              "start": 539,
              "end": 561,
              "ctxt": 0
            },
            "kind": "var",
            "declare": false,
            "declarations": [
              {
                "type": "VariableDeclarator",
                "span": {
                  "start": 543,
                  "end": 560,
                  "ctxt": 0
                },
                "id": {
                  "type": "Identifier",
                  "span": {
                    "start": 543,
                    "end": 544,
                    "ctxt": 0
                  },
                  "value": "b",
                  "optional": false,
                  "typeAnnotation": null
                },
                "init": {
                  "type": "CallExpression",
                  "span": {
                    "start": 547,
                    "end": 560,
                    "ctxt": 0
                  },
                  "callee": {
                    "type": "MemberExpression",
                    "span": {
                      "start": 547,
                      "end": 551,
                      "ctxt": 0
                    },
                    "object": {
                      "type": "Identifier",
                      "span": {
                        "start": 547,
                        "end": 548,
                        "ctxt": 0
                      },
                      "value": "o",
                      "optional": false
                    },
                    "property": {
                      "type": "Identifier",
                      "span": {
                        "start": 549,
                        "end": 551,
                        "ctxt": 0
                      },
                      "value": "fn",
                      "optional": false
                    }
                  },
                  "arguments": [
                    {
                      "spread": null,
                      "expression": {
                        "type": "Identifier",
                        "span": {
                          "start": 552,
                          "end": 553,
                          "ctxt": 0
                        },
                        "value": "a",
                        "optional": false
                      }
                    },
                    {
                      "spread": null,
                      "expression": {
                        "type": "Identifier",
                        "span": {
                          "start": 555,
                          "end": 556,
                          "ctxt": 0
                        },
                        "value": "a",
                        "optional": false
                      }
                    },
                    {
                      "spread": null,
                      "expression": {
                        "type": "Identifier",
                        "span": {
                          "start": 558,
                          "end": 559,
                          "ctxt": 0
                        },
                        "value": "a",
                        "optional": false
                      }
                    }
                  ],
                  "typeArguments": null
                },
                "definite": false
              }
            ]
          },
          {
            "type": "ExpressionStatement",
            "span": {
              "start": 566,
              "end": 574,
              "ctxt": 0
            },
            "expression": {
              "type": "CallExpression",
              "span": {
                "start": 566,
                "end": 573,
                "ctxt": 0
              },
              "callee": {
                "type": "Identifier",
                "span": {
                  "start": 566,
                  "end": 571,
                  "ctxt": 0
                },
                "value": "after",
                "optional": false
              },
              "arguments": [],
              "typeArguments": null
            }
          }
        ]
      },
      "generator": false,
      "async": true,
      "typeParameters": null,
      "returnType": {
        "type": "TsTypeAnnotation",
        "span": {
          "start": 503,
          "end": 518,
          "ctxt": 0
        },
        "typeAnnotation": {
          "type": "TsTypeReference",
          "span": {
            "start": 505,
            "end": 518,
            "ctxt": 0
          },
          "typeName": {
            "type": "Identifier",
            "span": {
              "start": 505,
              "end": 512,
              "ctxt": 0
            },
            "value": "Promise",
            "optional": false
          },
          "typeParams": {
            "type": "TsTypeParameterInstantiation",
            "span": {
              "start": 512,
              "end": 518,
              "ctxt": 0
            },
            "params": [
              {
                "type": "TsKeywordType",
                "span": {
                  "start": 513,
                  "end": 517,
                  "ctxt": 0
                },
                "kind": "void"
              }
            ]
          }
        }
      }
    }
  ],
  "interpreter": null
}