def getArmature(ctx: Context):

    def get(obj: Object):
        if obj is None:
            return None

        if obj.type == "ARMATURE":
            return obj

        for e in obj.modifiers:
            if isinstance(e, ArmatureModifier) and e.object is not None:
                return e.object

        return get(obj.parent)

    for obj in ctx.selected_objects:
        a=get(obj.parent)
        if a is not None:
            return a

    return None