Binary package “libghc-focuslist-prof” in ubuntu focal

lists with a focused element; profiling libraries

 A FocusList is a sequence of elements which has one element as its
 Focus. It supports quick insertion and indexing by its implementation
 with Seq.
 .
 This package provides a library for the Haskell programming language, compiled
 for profiling. See http://www.haskell.org/ for more information on Haskell.