libghc-onetuple-dev 0.2.2.1-1build2 (riscv64 binary) in ubuntu kinetic

 OneTuple fills the tuple gap with a singleton tuple.
 .
 OneTuple does not support the usual parenthesized tuple syntax.
 .
 OneTuple
  * has the expected laziness properties
  * can be pattern-matched
  * ships with instances for several standard type classes, including
    all those supported by H98-standard tuples
  * requires no language extensions, except for hierarchical modules
 .
 This package provides a library for the Haskell programming language.
 See http://www.haskell.org/ for more information on Haskell.