anchor.diff:      /// Valid entry codes are these letters: `EbBIS`.
       | InvalidEntryCode of char
       /// An entry of `expected` type was requested, but `found` was returned instead.
  -    | InvalidEntryType of expected: string * found: EGTEntry
  +    | InvalidEntryType of expected: string * found: Entry
   
   module EgtReader =
       let byteToChar = (*) 1uy >> char
  
positive.code:     | String of string
  
  /// What can go wrong with reading an EGT file.
  type EGTError =
      /// A [sequence error](Farkle.SeqError) did happen.
      | SeqError of SeqError
      /// Boolean values should only be `0` or `1`.
  
negative.code: open Monads.StateResult
  open System
  
  type Record =
      | Charset = 67uy
      | DFAState = 68uy
      | InitialStates = 73uy
  