Fix mimeRender name change

example/greet.hs

@@ -27,7 +27,7 @@ instance ToJSON Greet
 
 -- | We can also implement 'MimeRender' for additional formats like 'PlainText'.
 instance MimeRender PlainText Greet where
-    toByteString Proxy (Greet s) = "\"" <> cs s <> "\""
+    mimeRender Proxy (Greet s) = "\"" <> cs s <> "\""
 
 -- We add some useful annotations to our captures,
 -- query parameters and request body to make the docs

test/Servant/DocsSpec.hs

@@ -56,7 +56,7 @@ instance ToSample Int where
   toSample = Just 17
 
 instance MimeRender PlainText Int where
-  toByteString _ = cs . show
+  mimeRender _ = cs . show
 
 
 type TestApi1 = Get '[JSON, PlainText] Int