def METHOD_NAME():
    file_path = os.path.join(
        settings.MEDIA_ROOT,
        SPATIAL_SCALE_FILTER_FILE
    )
    if not os.path.exists(file_path):
        generate_spatial_scale_filter()
    with open(file_path, 'r') as file_handler:
        filter_data = file_handler.read()
    if filter_data:
        return json.loads(filter_data)
    else:
        return []