anchor.diff:      open System.Net
       open System.Text
       open System.Threading
  -    open Newtonsoft.Json
  -    open Newtonsoft.Json.Converters
       
       let jsonSettings = new JsonSerializerSettings()
  +    
       jsonSettings.Converters.Add(new StringEnumConverter())
  -
  +    
       /// Helper method to serialize cluster messages
       let protoSerialize (message : 'a) = 
           use stream = new MemoryStream()
  
positive.code:         match f with
          | Choice1Of2(r) -> success r owin
          | Choice2Of2(r) -> failure r owin
      
      type HttpBuilder() = 
          
          member this.Bind(v, f) = 
              match v with
              | Choice1Of2(x) -> f x
              | Choice2Of2(s) -> Choice2Of2(s)
          
          member this.ReturnFrom v = v
          member this.Return v = Choice1Of2(v)
          member this.Zero() = Choice1Of2()
  
negative.code:     open FlexSearch.Utility
      open Microsoft.Owin
      open Newtonsoft.Json
      open Newtonsoft.Json.Converters
      open ProtoBuf
      open System
      open System.Collections.Concurrent
  