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-rw-r--r--src/Hakyll/Core/Identifier/Pattern.hs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/Hakyll/Core/Identifier/Pattern.hs b/src/Hakyll/Core/Identifier/Pattern.hs
index 6bbfad8..8263f29 100644
--- a/src/Hakyll/Core/Identifier/Pattern.hs
+++ b/src/Hakyll/Core/Identifier/Pattern.hs
@@ -31,6 +31,10 @@
-- The 'capture' function allows the user to get access to the elements captured
-- by the capture elements in the pattern.
--
+-- Like an 'Identifier', a 'Pattern' also has a type parameter. This is simply
+-- an extra layer of safety, and can be discarded using the 'castPattern'
+-- function.
+--
module Hakyll.Core.Identifier.Pattern
( Pattern
, castPattern