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216 lines
8.2 KiB
Markdown
216 lines
8.2 KiB
Markdown
<p align="center">
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<a href="http://nestjs.com/" target="blank">
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<img src="https://nestjs.com/img/logo-small.svg" width="120" alt="Nest Logo" /
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</a>
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</p>
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# NestJS Telegraf
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![npm](https://img.shields.io/npm/dm/nestjs-telegraf)
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![GitHub last commit](https://img.shields.io/github/last-commit/bukhalo/nestjs-telegraf)
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![NPM](https://img.shields.io/npm/l/nestjs-telegraf)
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[Telegraf](https://github.com/telegraf/telegraf) module for [NestJS](https://github.com/nestjs/nest).
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## Installation
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```bash
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$ npm i nestjs-telegraf
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```
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Once the installation process is complete, we can import the TelegrafModule into the root AppModule.
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```typescript
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/* app.module.ts */
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import { Module } from '@nestjs/common';
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import { TelegrafModule } from 'nestjs-telegraf';
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@Module({
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imports: [
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TelegrafModule.forRoot({
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token: 'TELEGRAM_BOT_TOKEN',
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})
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],
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})
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export class AppModule {}
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```
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The `forRoot()` method accepts the same configuration object as Telegraf class constructor from the Telegraf package, as described [here](https://telegraf.js.org/#/?id=constructor).
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## Telegraf methods
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Each Telegraf instance method described [here](https://telegraf.js.org/#/?id=telegraf) has own decorator in `nestjs-telegraf` package. The name of the decorator corresponds to the name of the Telegraf method. For example [`@Hears`](https://telegraf.js.org/#/?id=hears), [`@On`](https://telegraf.js.org/#/?id=on), [`@Action`](https://telegraf.js.org/#/?id=action) and so on.
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Now let's try to repeat the example from the Telegraf [documentation page](https://telegraf.js.org/#/?id=example).
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```typescript
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/* app.service.ts */
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import { Injectable } from '@nestjs/common';
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import {
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Start,
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Help,
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On,
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Hears,
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Context,
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} from 'nestjs-telegraf';
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@Injectable()
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export class AppService {
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@Start()
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start(ctx: Context) {
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ctx.reply('Welcome');
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}
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@Help()
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help(ctx: Context) {
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ctx.reply('Send me a sticker');
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}
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@On('sticker')
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on(ctx: Context) {
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ctx.reply('👍');
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}
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@Hears('hi')
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hears(ctx: Context) {
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ctx.reply('Hey there');
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}
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}
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```
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## Bot injection
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At times you may need to access the native `Telegraf` instance. For example, you may want to connect stage middleware. You can inject the Telegraf by using the `@InjectBot()` decorator as follows:
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```typescript
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import { Injectable } from '@nestjs/common';
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import { InjectBot, TelegrafProvider } from 'nestjs-telegraf';
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@Injectable()
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export class BotSettingsService {
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constructor(@InjectBot() private bot: TelegrafProvider) {}
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}
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```
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## Async configuration
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When you need to pass module options asynchronously instead of statically, use the forRootAsync() method. As with most dynamic modules, Nest provides several techniques to deal with async configuration.
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One technique is to use a factory function:
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```typescript
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TelegrafModule.forRootAsync({
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useFactory: () => ({
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token: 'TELEGRAM_BOT_TOKEN',
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}),
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});
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```
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Like other [factory providers](https://docs.nestjs.com/fundamentals/custom-providers#factory-providers-usefactory), our factory function can be async and can inject dependencies through inject.
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```typescript
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TelegrafModule.forRootAsync({
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imports: [ConfigModule.forFeature(telegrafModuleConfig)],
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useFactory: async (configService: ConfigService) => ({
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token: configService.get<string>('TELEGRAM_BOT_TOKEN'),
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}),
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inject: [ConfigService],
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});
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```
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Alternatively, you can configure the TelegrafModule using a class instead of a factory, as shown below:
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```typescript
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TelegrafModule.forRootAsync({
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useClass: TelegrafConfigService,
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});
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```
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The construction above instantiates `TelegrafConfigService` inside `TelegrafModule`, using it to create the required options object. Note that in this example, the `TelegrafConfigService` has to implement the `TelegrafOptionsFactory` interface, as shown below. The `TelegrafModule` will call the `createTelegrafOptions()` method on the instantiated object of the supplied class.
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```typescript
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@Injectable()
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class TelegrafConfigService implements TelegrafOptionsFactory {
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createTelegrafOptions(): TelegrafModuleOptions {
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return {
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token: 'TELEGRAM_BOT_TOKEN',
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};
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}
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}
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```
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If you want to reuse an existing options provider instead of creating a private copy inside the `TelegrafModule`, use the `useExisting` syntax.
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```typescript
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TelegrafModule.forRootAsync({
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imports: [ConfigModule.forFeature(telegrafModuleConfig)],
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useExisting: ConfigService,
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});
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```
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## Webhooks
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If you want to configure a telegram bot webhook, you need to get a middleware from `TelegrafProvider` for connect it in your `main.ts` file.
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To access it, you must use the `app.get()` method, followed by the provider reference:
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```typescript
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const telegrafProvider = app.get('TelegrafProvider');
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```
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Now you can connect middleware:
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```typescript
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app.use(telegrafProvider.webhookCallback('/secret-path'));
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```
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The last step is to specify launchOptions in `forRoot` method:
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```typescript
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TelegrafModule.forRootAsync({
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imports: [ConfigModule.forFeature(telegrafModuleConfig)],
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useFactory: async (configService: ConfigService) => ({
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token: configService.get<string>('TELEGRAM_BOT_TOKEN'),
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launchOptions: {
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webhook: {
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domain: 'domain.tld',
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hookPath: '/secret-path',
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}
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}
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}),
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inject: [ConfigService],
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});
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```
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## Support
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Nest is an MIT-licensed open source project. It can grow thanks to the sponsors and support by the amazing backers. If you'd like to join them, please [read more here](https://docs.nestjs.com/support).
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## People
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- Authors - [Aleksandr Bukhalo](https://bukhalo.com/) & [Igor Kamyshev](https://kamyshev.me/)
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- Maintainers - [Aleksandr Bukhalo](https://bukhalo.com/)
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- Website - [https://nestjs.com](https://nestjs.com/)
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## License
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Nest is [MIT licensed](https://github.com/nestjs/nest/blob/master/LICENSE).
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## Contributors ✨
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Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
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<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
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<!-- prettier-ignore-start -->
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<!-- markdownlint-disable -->
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<table>
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<tr>
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<td align="center"><a href="https://github.com/Sedjj"><img src="https://avatars3.githubusercontent.com/u/5383030?v=4" width="100px;" alt=""/><br /><sub><b>Eldar Salimzebarov</b></sub></a><br /><a href="https://github.com/bukhalo/nestjs-telegraf/issues?q=author%3ASedjj" title="Bug reports">🐛</a></td>
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<td align="center"><a href="http://www.ismb.it/vito.macchia"><img src="https://avatars3.githubusercontent.com/u/2249342?v=4" width="100px;" alt=""/><br /><sub><b>Vito Macchia</b></sub></a><br /><a href="https://github.com/bukhalo/nestjs-telegraf/commits?author=lamuertepeluda" title="Code">💻</a> <a href="https://github.com/bukhalo/nestjs-telegraf/issues?q=author%3Alamuertepeluda" title="Bug reports">🐛</a></td>
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<td align="center"><a href="https://github.com/edgesite"><img src="https://avatars3.githubusercontent.com/u/10336620?v=4" width="100px;" alt=""/><br /><sub><b>KITAHARA SETSUNA</b></sub></a><br /><a href="https://github.com/bukhalo/nestjs-telegraf/commits?author=edgesite" title="Code">💻</a> <a href="https://github.com/bukhalo/nestjs-telegraf/issues?q=author%3Aedgesite" title="Bug reports">🐛</a></td>
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<td align="center"><a href="https://bukhalo.com/"><img src="https://avatars2.githubusercontent.com/u/14031838?v=4" width="100px;" alt=""/><br /><sub><b>Aleksandr Bukhalo</b></sub></a><br /><a href="https://github.com/bukhalo/nestjs-telegraf/commits?author=bukhalo" title="Code">💻</a> <a href="https://github.com/bukhalo/nestjs-telegraf/commits?author=bukhalo" title="Documentation">📖</a> <a href="https://github.com/bukhalo/nestjs-telegraf/pulls?q=is%3Apr+reviewed-by%3Abukhalo" title="Reviewed Pull Requests">👀</a></td>
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<td align="center"><a href="https://github.com/VyacheslavSaloidWork"><img src="https://avatars3.githubusercontent.com/u/43011265?v=4" width="100px;" alt=""/><br /><sub><b>Vyacheslav Saloid</b></sub></a><br /><a href="https://github.com/bukhalo/nestjs-telegraf/issues?q=author%3AVyacheslavSaloidWork" title="Bug reports">🐛</a></td>
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</tr>
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</table>
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<!-- markdownlint-enable -->
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<!-- prettier-ignore-end -->
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<!-- ALL-CONTRIBUTORS-LIST:END -->
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This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!
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