Examples of Dagger2 and Koin modules for providing dispatcher-specific CoroutineScopes.

DaggerCoroutineScopeModule.kt

@Module  
object CoroutineScopeModule {  

  @Provides  
  fun provideDefaultCoroutineScope(): DefaultCoroutineScope = DefaultCoroutineScope()  
  
  @Provides  
  fun provideIOCoroutineScope(): IOCoroutineScope = IOCoroutineScope()  
  
  @Provides  
  fun provideMainCoroutineScope(): MainCoroutineScope = MainCoroutineScope()  
  
  @Provides  
  fun provideMainImmediateCoroutineScope(): MainCoroutineScope = MainImmediateCoroutineScope()  
  
  @Provides  
  fun provideUnconfinedCoroutineScope(): MainCoroutineScope = UnconfinedCoroutineScope()  
}

KoinCoroutineScopeModule.kt

val coroutineScopeModule = module {
  
  factory<DefaultCoroutineScope> { DefaultCoroutineScope() }
  factory<IOCoroutineScope> { IOCoroutineScope() }
  factory<MainCoroutineScope> { MainCoroutineScope() }
  factory<MainImmediateCoroutineScope> { MainImmediateCoroutineScope() }
  factory<UnconfinedCoroutineScope> { UnconfinedCoroutineScope() }
}