diff --git a/src/Servant/API/Patch.hs b/src/Servant/API/Patch.hs
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+++ b/src/Servant/API/Patch.hs
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+{-# LANGUAGE DeriveDataTypeable #-}
+module Servant.API.Patch where
+
+import Data.Typeable ( Typeable )
+
+-- | Endpoint for PATCH requests. The type variable represents the type of the
+-- response body (not the request body, use 'Servant.API.ReqBody.ReqBody' for
+-- that).
+--
+-- If the HTTP response is empty, only () is supported.
+--
+-- Example:
+--
+-- >            -- POST /books
+-- >            -- with a JSON encoded Book as the request body
+-- >            -- returning the just-created Book
+-- > type MyApi = "books" :> ReqBody Book :> Post Book
+data Patch a
+  deriving Typeable