Typescript definitions not working

[comatory]

I'm trying to use your library with Typescript (v 3.6) and it fails to compile my project. I think the problem is that the provided definitions in index.d.ts:

1. are using default parameters in function definitions
2. using puppeteer as dev dependency, even though it should be a dependency

At least that's what I've got from the quick scanning of the following error log

node_modules/node-warc/index.d.ts:2:23 - error TS2688: Cannot find type definition file for 'puppeteer'.

2 /// <reference types="puppeteer" />
                        ~~~~~~~~~

node_modules/node-warc/index.d.ts:8:29 - error TS2307: Cannot find module 'puppeteer'.

8 import * as puppeteer  from 'puppeteer'
                              ~~~~~~~~~~~

node_modules/node-warc/index.d.ts:221:41 - error TS1015: Parameter cannot have question mark and initializer.

221     constructor (page?: puppeteer.Page, requestEvent?: string = 'request');
                                            ~~~~~~~~~~~~

node_modules/node-warc/index.d.ts:221:41 - error TS2371: A parameter initializer is only allowed in a function or constructor implementation.

221     constructor (page?: puppeteer.Page, requestEvent?: string = 'request');
                                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/node-warc/index.d.ts:222:35 - error TS1015: Parameter cannot have question mark and initializer.

222     attach (page: puppeteer.Page, requestEvent?: string = 'request'): void;
                                      ~~~~~~~~~~~~

node_modules/node-warc/index.d.ts:222:35 - error TS2371: A parameter initializer is only allowed in a function or constructor implementation.

222     attach (page: puppeteer.Page, requestEvent?: string = 'request'): void;
                                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/node-warc/index.d.ts:223:35 - error TS1015: Parameter cannot have question mark and initializer.

223     detach (page: puppeteer.Page, requestEvent?: string = 'request'): void;
                                      ~~~~~~~~~~~~

node_modules/node-warc/index.d.ts:223:35 - error TS2371: A parameter initializer is only allowed in a function or constructor implementation.

223     detach (page: puppeteer.Page, requestEvent?: string = 'request'): void;
                                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/node-warc/index.d.ts:251:35 - error TS1015: Parameter cannot have question mark and initializer.

251     constructor (page?: CRIEPage, requestEvent?: string = 'request');
                                      ~~~~~~~~~~~~

node_modules/node-warc/index.d.ts:251:35 - error TS2371: A parameter initializer is only allowed in a function or constructor implementation.

251     constructor (page?: CRIEPage, requestEvent?: string = 'request');
                                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/node-warc/index.d.ts:252:29 - error TS1015: Parameter cannot have question mark and initializer.

252     attach (page: CRIEPage, requestEvent?: string = 'request'): void;
                                ~~~~~~~~~~~~

node_modules/node-warc/index.d.ts:252:29 - error TS2371: A parameter initializer is only allowed in a function or constructor implementation.

252     attach (page: CRIEPage, requestEvent?: string = 'request'): void;
                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/node-warc/index.d.ts:253:29 - error TS1015: Parameter cannot have question mark and initializer.

253     detach (page: CRIEPage, requestEvent?: string = 'request'): void;
                                ~~~~~~~~~~~~

node_modules/node-warc/index.d.ts:253:29 - error TS2371: A parameter initializer is only allowed in a function or constructor implementation.

253     detach (page: CRIEPage, requestEvent?: string = 'request'): void;
                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~