[v5] how to use async import with binding

[ghost]

here I am importing the class and binding it in boot method which I think is not a good practice like this

  export default class ServiceProvider {
    constructor(protected app: ApplicationContract) {}
  
    public register() {
      // Register your own bindings
    }
  
    public async boot() {
      // IoC container is ready
      const { AuthorizationService } = await import('../app/Services/AuthorizationService')
  
      this.app.container.singleton('Struxe/Authorization', () => new AuthorizationService())
    }
  
    public async ready() {
      // App is ready
    }
  
    public async shutdown() {
      // Cleanup, since app is going down
    }
  }

can I do it like this or is there any better way of doing this

 public async boot() {  
    this.app.container.singleton('Struxe/Authorization', async () =>{
        const { AuthorizationService } = await import('../app/Services/AuthorizationService')
       new AuthorizationService()
     })
  }