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Within LTS Haskell 24.26 (ghc-9.10.3)

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1. flagBool :: [Name] -> (Bool -> a -> a) -> Help -> Flag a

   cmdargs	System.Console.CmdArgs.Explicit

   Create a boolean flag, with a list of flag names, an update function and some help text.

2. parseBool :: String -> Maybe Bool

   cmdargs	System.Console.CmdArgs.Explicit

   Parse a boolean, accepts as True: true yes on enabled 1.

3. gobjectInstallGBooleanProperty :: DerivedGObject o => GObjectClass -> GBooleanPropertyInfo o -> IO ()

   haskell-gi-base	Data.GI.Base.GObject

   Add a `${type gboolean}`-valued property to the given object class.

4. data GBooleanPropertyInfo o

   haskell-gi-base	Data.GI.Base.GParamSpec

   Information on a property of type `type gboolean` to be registered. A property name consists of segments consisting of ASCII letters and digits, separated by either the '-' or '_' character. The first character of a property name must be a letter. Names which violate these rules lead to undefined behaviour. When creating and looking up a property, either separator can be used, but they cannot be mixed. Using '-' is considerably more efficient and in fact required when using property names as detail strings for signals. Beyond the name, properties have two more descriptive strings associated with them, the nick, which should be suitable for use as a label for the property in a property editor, and the blurb, which should be a somewhat longer description, suitable for e.g. a tooltip. The nick and blurb should ideally be localized.

5. GBooleanPropertyInfo :: Text -> Text -> Text -> Bool -> Maybe [GParamFlag] -> (o -> Bool -> IO ()) -> (o -> IO Bool) -> GBooleanPropertyInfo o

   haskell-gi-base	Data.GI.Base.GParamSpec

   No documentation available.

6. gParamSpecGBoolean :: GObject o => GBooleanPropertyInfo o -> IO GParamSpec

   haskell-gi-base	Data.GI.Base.GParamSpec

   Create a GParamSpec for a bool param.

7. gtypeBoolean :: GType

   haskell-gi-base	Data.GI.Base.GType

   GType corresponding to gboolean.

8. gvariantFromBool :: Bool -> IO GVariant

   haskell-gi-base	Data.GI.Base.GVariant

   No documentation available.

9. gvariantToBool :: GVariant -> IO (Maybe Bool)

   haskell-gi-base	Data.GI.Base.GVariant

   No documentation available.

10. constructObjectPropertyBool :: String -> Bool -> IO (GValueConstruct o)

    haskell-gi-base	Data.GI.Base.Properties

    No documentation available.

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