public ClientAssertionCredential(string tenantId, string clientId, System.Func <System.Threading.CancellationToken, System.Threading.Tasks.Task <string> > assertionCallback, Azure.Identity.ClientAssertionCredentialOptions options = null)
 {
 }
 public ClientAssertionCredential(string tenantId, string clientId, System.Func <string> assertionCallback, Azure.Identity.ClientAssertionCredentialOptions options = null)
 {
 }