public static MeNewCashInOutModel Create(
     string id,
     string clientId,
     string assetId,
     double amount,
     FeeContract feeContract = null)
 {
     return(new MeNewCashInOutModel
     {
         Id = id,
         ClientId = clientId,
         DateTime = (long)System.DateTime.UtcNow.ToUnixTime(),
         AssetId = assetId,
         Amount = amount,
         Fee = feeContract
     });
 }
 public static MeNewTransferModel Create(
     string id,
     string fromClientId,
     string toClientId,
     string assetId,
     double amount,
     FeeContract feeContract,
     double overdraft)
 {
     return(new MeNewTransferModel
     {
         Id = id,
         FromClientId = fromClientId,
         ToClientId = toClientId,
         DateTime = (long)System.DateTime.UtcNow.ToUnixTime(),
         AssetId = assetId,
         Amount = amount,
         Fee = feeContract,
         Overdraft = overdraft
     });
 }