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1. prefShowHelpOnError :: ParserPrefs -> Bool

   optparse-applicative	Options.Applicative

   always show help text on parse errors (default: False)

2. helpShowGlobals :: PrefsMod

   optparse-applicative	Options.Applicative.Builder

   Show global help information in subparser usage.

3. prefHelpShowGlobal :: ParserPrefs -> Bool

   optparse-applicative	Options.Applicative.Common

   when displaying subparsers' usage help, show parent options under a "global options" section (default: False)

4. prefShowHelpOnEmpty :: ParserPrefs -> Bool

   optparse-applicative	Options.Applicative.Common

   show the help text for a command or subcommand if it fails with no input (default: False)

5. prefShowHelpOnError :: ParserPrefs -> Bool

   optparse-applicative	Options.Applicative.Common

   always show help text on parse errors (default: False)

6. prefHelpShowGlobal :: ParserPrefs -> Bool

   optparse-applicative	Options.Applicative.Extra

   when displaying subparsers' usage help, show parent options under a "global options" section (default: False)

7. prefShowHelpOnEmpty :: ParserPrefs -> Bool

   optparse-applicative	Options.Applicative.Extra

   show the help text for a command or subcommand if it fails with no input (default: False)

8. prefShowHelpOnError :: ParserPrefs -> Bool

   optparse-applicative	Options.Applicative.Extra

   always show help text on parse errors (default: False)

9. unsafeViaShow :: Show a => a -> Doc ann

   optparse-applicative	Options.Applicative.Help.Pretty

   Convenience function to convert a Showable value /that must not contain newlines/ to a Doc. If there may be newlines, use viaShow instead.

10. viaShow :: Show a => a -> Doc ann

    optparse-applicative	Options.Applicative.Help.Pretty

    Convenience function to convert a Showable value to a Doc. If the String does not contain newlines, consider using the more performant unsafeViaShow.

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