public void ConfigureServices(IServiceCollection services) { // Add a singleton service services.AddSingletonIn this example, we are registering three services: a singleton service, a scoped service, and a transient service. The `AddSingleton`, `AddScoped`, and `AddTransient` methods respectively register services with different lifetimes. The `IMyService`, `IMyScopedService`, and `IMyTransientService` interfaces represent the contracts that our services abide by. The `MyService`, `MyScopedService`, and `MyTransientService` classes implement these interfaces. This code example is using the Microsoft.Extensions.DependencyInjection package library.(); // Add a scoped service services.AddScoped (); // Add a transient service services.AddTransient (); }