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This package provides a canonical anonymous 1-tuple type missing from Haskell | |||||
for attaching typeclass instances. | |||||
NOTE: There is also the 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. | |||||
WWW: https://github.com/haskell/Only | |||||