<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> <pkgmetadata> <maintainer type="project"> <email>haskell@gentoo.org</email> <name>Gentoo Haskell</name> </maintainer> <longdescription> This package provides a canonical anonymous 1-tuple type missing from Haskell for attaching typeclass instances. NOTE: There is also the </package/OneTuple OneTuple package> which by using a boxed @data@-type provides a 1-tuple type which has laziness properties which are more faithful to the ones of Haskell's native tuples; whereas the primary purpose of 'Only' is to provide the traditionally so named type-wrapper for attaching typeclass instances. </longdescription> </pkgmetadata>