def config(config):
    """ A config containing a smaller exposure sequence. """

    config["exposure_sequence"]["n_days"] = 1
    config["exposure_sequence"]["n_cameras"] = 1
    config["exposure_sequence"]["n_dark"] = 1
    config["exposure_sequence"]["n_bias"] = 1
    config["exposure_sequence"]["filters"] = ["g_band"]

    config["collections"]["ExposureCollection"]["name"] = "fake_data_lite"
    config["collections"]["CalibCollection"]["name"] = "calib_test"

    return config