factories: added docstring to ApiUndoRedoItem
factories: added docstring to ApiUndoRedoItem

leonsooi/pymel,AtonLerin/pymel,david-lassonde-adsk/pymel,juggernate/pymel,david-lassonde-adsk/pymel,assumptionsoup/pymel,assumptionsoup/pymel,shrtcww/pymel,juggernate/pymel,leonsooi/pymel,shrtcww/pymel,AtonLerin/pymel