+<item>
+Operations for coercing an <tt/ST/ action into an <tt/IO/ one, and
+vice versa are also provided. Notice that coercing an <tt/IO/ action
+into an <tt/ST/ action is 'lossy', since any exception raised within the
+<tt/IO/ action will not be caught within the <tt/ST/ monad, as it
+doesn't support (monadic) exceptions.