Examine values for unexpected thunks; profiling libraries

 Long lived application data typically should not contain any thunks. This
 library can be used to examine values for unexpected thunks, which can then be
 used in assertions. This can be invaluable in avoiding memory leaks, or
 tracking down existing ones.
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 This package provides a library for the Haskell programming language, compiled
 for profiling. See http://www.haskell.org/ for more information on Haskell.