public Task <Uri> GetImpersonationUrlAsync(ImpersonationRequest request)
 {
     return(_inner.GetImpersonationUrlAsync(request));
 }
 public Task <Uri> GetImpersonationUrlAsync(ImpersonationRequest request, CancellationToken cancellationToken = default)
 {
     return(_inner.GetImpersonationUrlAsync(request, cancellationToken));
 }