def METHOD_NAME(user_info):
    gate.ActorBase.METHOD_NAME(user_info)
    mm = gate.g4_units("mm")
    user_info.output = False
    user_info.input_digi_collections = ["Hits"]
    user_info.spacing = [4 * mm, 4 * mm]
    user_info.size = [128, 128]
    user_info.physical_volume_index = None
    user_info.origin_as_image_center = True
    user_info.detector_orientation_matrix = Rotation.from_euler("x", 0).as_matrix()