Stubs.

docs/Function.md

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+Functions
+=========
+
+```haskell
+($) :: (a -> b) -> a -> b
+```
+
+```haskell
+(&) :: a -> (a -> b) -> b
+```
+
+```haskell
+(.) :: (b -> c) -> (a -> b) -> a -> c
+```
+
+```haskell
+flip :: (a -> b -> c) -> b -> a -> c
+```
+
+```haskell
+on :: (b -> b -> c) -> (a -> b) -> a -> a -> c
+```
+
+```haskell
+const :: a -> b -> a
+```
+
+```haskell
+fix :: (a -> a) -> a
+```
+
+```haskell
+($!) :: (a -> b) -> a -> b
+```
+
+```haskell
+identity :: a -> a
+```
+
+```haskell
+($!!) :: NFData a => (a -> b) -> a -> b
+```
+
+```haskell
+($!!) :: NFData a => (a -> b) -> a -> b
+```
+
+```haskell
+force :: NFData a => a -> a
+```