<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.6" />

Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory

sealed class CallSiteFactory : IServiceProviderIsService, IServiceProviderIsKeyedService
namespace Microsoft.Extensions.DependencyInjection.ServiceLookup { internal sealed class CallSiteFactory : IServiceProviderIsService, IServiceProviderIsKeyedService { public CallSiteFactory(ICollection<ServiceDescriptor> descriptors); public void Add(ServiceIdentifier serviceIdentifier, ServiceCallSite serviceCallSite); public bool IsService(Type serviceType); public bool IsKeyedService(Type serviceType, object key); } }