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1. boolOption :: Mod OptionFields Bool -> Parser Bool

   configuration-tools	Configuration.Utils.CommandLine

   The boolOption is an alternative to switch. Using switch with command line parsers that overwrite settings from a configuration file is problematic: the absence of the switch is interpreted as setting the respective configuration value to False. So there is no way to specify on the command line that the value from the configuration file shall be used. Some command line UIs use two different options for those values, for instance --enable-feature and --disable-feature. This option instead expects a Boolean value. Beside that it behaves like any other option.

2. boolOption_ :: Mod FlagFields Bool -> Parser Bool

   configuration-tools	Configuration.Utils.CommandLine

   An alternative syntax for boolOption for options with long names. Instead of taking a boolean argument the presence of the option acts as a switch to set the respective configuration setting to True. If the option is not present the setting is left unchanged. In addition for long option names a respective unset flag is provided. For instance for a flag --verbose there will also be a flag --no-verbose. This can still be used with short option names only, but no unset flag would be provided.

3. boolReader :: (Eq a, Show a, FoldCase a, IsString a, IsString e, Monoid e) => a -> Either e Bool

   configuration-tools	Configuration.Utils.CommandLine

   No documentation available.

4. boolToGauge :: Bool -> Metric

   data-prometheus	Data.Prometheus.Monad

   Convert Bool to Gauge, 0 meaning False

5. boolFlag :: Name -> Description -> FlagsParser Bool

   flags-applicative	Flags.Applicative

   Returns a parser with the given name and description for a flag with no value, returning whether the flag was present.

6. boolL :: Bool -> r -> r -> r

   generic-case	Generics.Case

   Same as bool, except the Bool comes before the case functions. Equivalent type signature:

   boolL :: forall r. Analysis Bool r
   

   The implementation is just:

   boolL = gcase
   

7. boolR :: r -> r -> Bool -> r

   generic-case	Generics.Case

   bool, implemented using gcaseR. Equivalent type signature:

   boolR :: forall r. AnalysisR Bool r
   

   The implementation is just:

   boolR = gcaseR @Bool
   

8. boolector :: GrisetteSMTConfig

   grisette	Grisette.Backend

   Solver configuration for Boolector. https://boolector.github.io/

9. boolector :: GrisetteSMTConfig

   grisette	Grisette.Internal.Backend.Solving

   Solver configuration for Boolector. https://boolector.github.io/

10. boolField :: String -> (Item a -> Bool) -> Context a

    hakyll	Hakyll.Web.Template.Context

    Creates a field to use with the $if()$ template macro. Attempting to substitute the field into the template will cause an error.

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