wm.context_toggle for Toggle On / Off X-RAY Armature ( Context attribute )

hi im looking for correct context attribute to toggle on / off with shortcut key at input editor
XRAY armature because i find use it often and decided to make it as shortcut

i tried the following context attribute but gives error

active_object.data.show_x_ray
Object.Show_x_ray

thank you for answers

Try active_object.show_x_ray. show_x_ray is not inside data.