tagless_datasource.kt

class RepositoryDataSource<F>(
    private val async: Async<F>,
    private val apiClient: ApiClient
) {
    fun fetchAllRepositories(): Kind<F, List<Repository>> =
        async.run {
            apiClient.getRepositories("Java", "star", 1)
               .async(this)
               .flatMap { response -> response.unwrapBody(this) }
               .map { dto -> dto.items }    
    }

}