public AgreementEndpoint(EchoSignSDK api)
            : base(api)
        {

        }
        public ReminderEndpoint(EchoSignSDK api)
            : base(api)
        {

        }
        public TransientDocumentEndpoint(EchoSignSDK api)
            : base(api)
        {

        }
        public LibraryDocumentEndpoint(EchoSignSDK api)
            : base(api)
        {

        }
 public EndpointBase(EchoSignSDK sdk)
 {
     this.Sdk = sdk;
 }
        public UserEndpoint(EchoSignSDK api)
            : base(api)
        {

        }