Group.py

class Group(Node):
    def __init__(self, handle=None):
        if handle:
            super().__init__(handle)
        else:
            self.handle = self.create()
            Engine.add_java_peer(self.handle, self)
            self.ii = (self.__class__ != Group)

    def get_child(self, index):
        child_handle = self.get_child_impl(index)
        return Engine.instantiate_java_peer(child_handle)

    def add_child(self, child):
        self.add_child_impl(child)
        Engine.add_xot(child)

    def pick(self, scope, ox, oy, oz, dx, dy, dz, ray_intersection):
        return self.pick_node(scope, ox, oy, oz, dx, dy, dz, ray_intersection)

    def pick_with_camera(self, scope, x, y, camera, ray_intersection):
        return self.pick_camera(scope, x, y, camera, ray_intersection)

    def finalize(self):
        pass  # Placeholder for finalization logic if needed

    @staticmethod
    def create():
        # Simulating the native create method
        return Engine.create_group()

    def get_child_count(self):
        return self.get_child_count_impl()

    def get_child_impl(self, index):
        # Placeholder for native method
        pass

    def add_child_impl(self, child):
        # Placeholder for native method
        pass

    def remove_child(self, child):
        # Placeholder for native method
        pass

    def pick_node(self, scope, ox, oy, oz, dx, dy, dz, ray_intersection):
        # Placeholder for native method
        pass

    def pick_camera(self, scope, x, y, camera, ray_intersection):
        # Placeholder for native method
        pass