defmoduleEjabberd.Hooksdo# Generic hook setting featuresdefadd(hook_name,host,module,function,priority)do:ejabberd_hooks.add(hook_name,host,module,function,priority)end# Should be named 'removed'defdelete(hook_name,host,module,function,priority)do:ejabberd_hooks.delete(hook_name,host,module,function,priority)endend