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Within LTS Haskell 24.4 (ghc-9.10.2)

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  1. head :: Sequential c => NonEmpty c -> Element c

    foundation Foundation

    get the first element of a non-empty collection

  2. head :: Sequential c => NonEmpty c -> Element c

    foundation Foundation.Collection

    get the first element of a non-empty collection

  3. head :: NESeq a -> a

    nonempty-containers Data.Sequence.NonEmpty

    O(1). Retrieve the left-most item in a non-empty sequence. Note that this function is total.

  4. head :: [a] -> a

    prelude-compat Data.List2010

    No documentation available.

  5. head :: [a] -> a

    prelude-compat Prelude2010

    No documentation available.

  6. head :: Vector a -> a

    rebase Rebase.Data.Vector

    No documentation available.

  7. head :: (HasCallStack, Monad m) => Stream m a -> m a

    rebase Rebase.Data.Vector.Fusion.Stream.Monadic

    First element of the Stream or error if empty

  8. head :: Vector v a => v a -> a

    rebase Rebase.Data.Vector.Generic

    No documentation available.

  9. head :: Prim a => Vector a -> a

    rebase Rebase.Data.Vector.Primitive

    No documentation available.

  10. head :: Storable a => Vector a -> a

    rebase Rebase.Data.Vector.Storable

    No documentation available.

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