public Task <TransactionReceipt> StageRequestAndWaitForReceiptAsync(StageFunction stageFunction, CancellationTokenSource cancellationToken = null)
 {
     return(ContractHandler.SendRequestAndWaitForReceiptAsync(stageFunction, cancellationToken));
 }
 public Task <string> StageRequestAsync(StageFunction stageFunction)
 {
     return(ContractHandler.SendRequestAsync(stageFunction));
 }