Amazon.IdentityManagement.AmazonIdentityManagementServiceClient.ListSigningCertificates C# (CSharp) Method

        public ListSigningCertificatesResponse ListSigningCertificates()
        {
            return ListSigningCertificates(new ListSigningCertificatesRequest());
        }

 public static void DeleteCertificatesForUser(AmazonIdentityManagementServiceClient client, string username)
 {
     ListSigningCertificatesResponse response =
         client.ListSigningCertificates(new ListSigningCertificatesRequest() { UserName = username });
     foreach (SigningCertificate cert in response.Certificates)
     {
         client.DeleteSigningCertificate(new DeleteSigningCertificateRequest() { UserName = username, CertificateId = cert.CertificateId });
     }
 }