public Task <string> UpsertTestCentreCertSignerRequestAsync(TestCentreCertSigner testCentreCertSigner)
        {
            var upsertTestCentreCertSignerFunction = new UpsertTestCentreCertSignerFunction();

            upsertTestCentreCertSignerFunction.TestCentreCertSigner = testCentreCertSigner;

            return(ContractHandler.SendRequestAsync(upsertTestCentreCertSignerFunction));
        }
        public Task <TransactionReceipt> UpsertTestCentreCertSignerRequestAndWaitForReceiptAsync(TestCentreCertSigner testCentreCertSigner, CancellationTokenSource cancellationToken = null)
        {
            var upsertTestCentreCertSignerFunction = new UpsertTestCentreCertSignerFunction();

            upsertTestCentreCertSignerFunction.TestCentreCertSigner = testCentreCertSigner;

            return(ContractHandler.SendRequestAndWaitForReceiptAsync(upsertTestCentreCertSignerFunction, cancellationToken));
        }