To use this module, add the following import to ~/.xmonad/xmonad.hs:

 import XMonad.Hooks.ManageDocks

The first component is a ManageHook which recognizes these windows. To enable it:

 manageHook = ... <+> manageDocks

The second component is a layout modifier that prevents windows from overlapping these dock windows. It is intended to replace xmonad's so-called gap support. First, you must add it to your list of layouts:

 layoutHook = avoidStruts (tall ||| mirror tall ||| ...)

AvoidStruts also supports toggling the dock gap, add a keybinding similar to:

 ,((modMask,               xK_b     ), sendMessage ToggleStruts)