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1. unsafeMkDefUnitId :: UnitId -> DefUnitId

   Cabal-syntax	Distribution.Types.UnitId

   Unsafely create a DefUnitId from a UnitId. Your responsibility is to ensure that the DefUnitId invariant holds.

2. validVersion :: Version -> Bool

   Cabal-syntax	Distribution.Types.Version

   No documentation available.

3. validateUTF8 :: ByteString -> Maybe Int

   Cabal-syntax	Distribution.Utils.Generic

   Check that strict ByteString is valid UTF8. Returns 'Just offset' if it's not.

4. UndecidableInstances :: KnownExtension

   Cabal-syntax	Language.Haskell.Extension

   Ignore structural rules guaranteeing the termination of class instance resolution. Termination is guaranteed by a fixed-depth recursion stack, and compilation may fail if this depth is exceeded.

5. UndecidableSuperClasses :: KnownExtension

   Cabal-syntax	Language.Haskell.Extension

   Allow recursive (and therefore undecidable) super-class relationships.

6. isValidBase64 :: ByteString -> Bool

   base64	Data.ByteString.Base64

   Tell whether a ByteString value is a valid Base64 format. This will not tell you whether or not this is a correct Base64 representation, only that it conforms to the correct shape. To check whether it is a true Base64 encoded ByteString value, use isBase64.

   Examples:

   >>> isValidBase64 "U3Vu"
   True
   

   >>> isValidBase64 "U3V"
   True
   

   >>> isValidBase64 "U3V="
   True
   

   >>> isValidBase64 "%"
   False
   

7. isValidBase64Url :: ByteString -> Bool

   base64	Data.ByteString.Base64.URL

   Tell whether a ByteString is a valid Base64url format. This will not tell you whether or not this is a correct Base64url representation, only that it conforms to the correct shape. To check whether it is a true Base64 encoded ByteString value, use isBase64Url.

   Examples:

   >>> isValidBase64Url "PDw_Pj4="
   True
   

   >>> isValidBase64Url "PDw_Pj"
   True
   

   >>> isValidBase64Url "%"
   False
   

8. isValidBase64 :: ByteString -> Bool

   base64	Data.ByteString.Lazy.Base64

   Tell whether a ByteString value is a valid Base64 format. This will not tell you whether or not this is a correct Base64 representation, only that it conforms to the correct shape. To check whether it is a true Base64 encoded ByteString value, use isBase64.

   Examples:

   >>> isValidBase64 "U3Vu"
   True
   

   >>> isValidBase64 "U3V"
   True
   

   >>> isValidBase64 "U3V="
   True
   

   >>> isValidBase64 "%"
   False
   

9. isValidBase64Url :: ByteString -> Bool

   base64	Data.ByteString.Lazy.Base64.URL

   Tell whether an untyped ByteString is a valid Base64url format. This will not tell you whether or not this is a correct Base64url representation, only that it conforms to the correct shape. To check whether it is a true Base64 encoded ByteString value, use isBase64Url.

   Examples:

   >>> isValidBase64Url "PDw_Pj4="
   True
   

   >>> isValidBase64Url "PDw_Pj"
   True
   

   >>> isValidBase64Url "%"
   False
   

10. isValidBase64 :: ShortByteString -> Bool

    base64	Data.ByteString.Short.Base64

    Tell whether a ShortByteString value is a valid Base64 format. This will not tell you whether or not this is a correct Base64 representation, only that it conforms to the correct shape. To check whether it is a true Base64 encoded ShortByteString value, use isBase64.

    Examples:

    >>> isValidBase64 "U3Vu"
    True
    

    >>> isValidBase64 "U3V"
    True
    

    >>> isValidBase64 "U3V="
    True
    

    >>> isValidBase64 "%"
    False
    

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