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Within LTS Haskell 24.6 (ghc-9.10.2)

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1. header :: PngRawImage -> PngIHdr

   JuicyPixels	Codec.Picture.Png.Internal.Type

   No documentation available.

2. headOf :: forall k (is :: IxList) s a . Is k A_Fold => Optic' k is s a -> s -> Maybe a

   optics-core	Optics.Fold

   Retrieve the first entry of a Fold.

   >>> headOf folded [1..10]
   Just 1
   

   >>> headOf each (1,2)
   Just 1
   

3. header :: [ByteString] -> Header

   cassava	Data.Csv

   Construct a header from a list of ByteStrings.

4. headerOrder :: DefaultOrdered a => a -> Header

   cassava	Data.Csv

   The header order for this record. Should include the names used in the NamedRecord returned by toNamedRecord. Pass undefined as the argument, together with a type annotation e.g. headerOrder (undefined :: MyRecord).

5. header :: Word8 -> Parser Header

   cassava	Data.Csv.Parser

   Parse a header, including the terminating line separator.

6. headTail :: forall (n :: Nat) . (KnownNat n, 1 <= n) => R n -> (ℝ, R (n - 1))

   hmatrix	Numeric.LinearAlgebra.Static

   No documentation available.

7. headEx :: MonoFoldable mono => mono -> Element mono

   mono-traversable	Data.MonoTraversable

   Get the first element of a monomorphic container. Note: this is a partial function. On an empty MonoFoldable, it will throw an exception. See head from Data.NonNull for a total version of this function.

8. headMay :: MonoFoldable mono => mono -> Maybe (Element mono)

   mono-traversable	Data.MonoTraversable

   Safe version of headEx. Returns Nothing instead of throwing an exception when encountering an empty monomorphic container.

9. headMaybe :: [a] -> Maybe a

   rio	RIO.List

   No documentation available.

10. headM :: Monad m => Vector a -> m a

    rio	RIO.Vector.Boxed.Partial

    No documentation available.

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