void is:module

A logically uninhabited data type, used to indicate that a given term should not exist.
TextShow instance for Void. Since: 2
A logically uninhabited data type, used to indicate that a given term should not exist.
Declares a Listable Void instance.
Modifies a layout to set borders to 0 for all windows in the workspace. Unlike XMonad.Layout.NoBorders, the voidBorders modifier will not restore the window border if the windows are moved to a different workspace or the layout is changed. There is, however, a companion normalBorders modifier which explicitly restores the border. This modifier's primary use is to eliminate the "border flash" you get while switching workspaces with the XMonad.Layout.NoBorders modifier.
Find a maximum empty rectangle around floating windows and use that area to display non-floating windows.