public Task <string> GetAddressValueQueryAsync(byte[] key, BlockParameter blockParameter = null)
        {
            var getAddressValueFunction = new GetAddressValueFunction();

            getAddressValueFunction.Key = key;

            return(ContractHandler.QueryAsync <GetAddressValueFunction, string>(getAddressValueFunction, blockParameter));
        }
 public Task <string> GetAddressValueQueryAsync(GetAddressValueFunction getAddressValueFunction, BlockParameter blockParameter = null)
 {
     return(ContractHandler.QueryAsync <GetAddressValueFunction, string>(getAddressValueFunction, blockParameter));
 }