sketch for single injectable

my-component.ts

import { Client } from '@c8y/client';

@Component() 
class MyComponent() {
  constructor(client: Client) {}
}

ng-data.ts

import { NgModule, Injectable } from '@angular/core';
import { Client, BasicAuth } from '@c8y/client';
import { AppStateService } from './app-state.service';
import { ManagedObjectResolver } from './resolvers';

function clientFactory(auth) {
  return new Client(auth);
}

@NgModule({
  imports: [],
  exports: [],
  declarations: [],
  providers: [
    AppStateService,
    ManagedObjectResolver,
    InventoryService,
    { provide: BasicAuth, useValue: new BasicAuth() },
    { provide: Client, useFactory: clientFactory, deps: [BasicAuth] }
  ]
})
export class C8yDataModule {}