internal KerberosMapperClient GetGrpcClient()
 {
     if (_grpcClient == null)
     {
         _grpcClient = new KerberosMapperClient(GetGrpcChannel());
     }
     return(_grpcClient);
 }
 protected override void DisposeClientResources(bool disposing)
 {
     // Not much to do
     _grpcClient = null;
 }