anchor.diff:      Assert.Equal(0, GetBitCoin().Execute(bitCoinCode) |> Seq.length)
   
   [<Fact>]
  -let implicitTransaction() =
  +let localTransaction() =
       DeleteBitCoin().Execute(bitCoinCode) |> ignore
       use conn = new System.Data.SqlClient.SqlConnection(connectionString)
       conn.Open()
  
positive.code: open System.Transactions
  
  [<Fact>]
  let localTransaction() =
      DeleteBitCoin().Execute(bitCoinCode) |> ignore
      begin
          use tran = new TransactionScope() in
  
negative.code: open System
  open System.Data
  open System.Data.SqlClient
  open Xunit
  
  [<Literal>]
  