public Task <string> GetAddressStringQueryAsync(string contractName, BlockParameter blockParameter = null)
        {
            var getAddressStringFunction = new GetAddressStringFunction();

            getAddressStringFunction.ContractName = contractName;

            return(ContractHandler.QueryAsync <GetAddressStringFunction, string>(getAddressStringFunction, blockParameter));
        }
 public Task <string> GetAddressStringQueryAsync(GetAddressStringFunction getAddressStringFunction, BlockParameter blockParameter = null)
 {
     return(ContractHandler.QueryAsync <GetAddressStringFunction, string>(getAddressStringFunction, blockParameter));
 }