def METHOD_NAME(self):
    """
    Dev manifest format is:
    """
    try:
        with open(settings.FRONTEND_BUILD_DIR / "manifest.dev.json") as f:
            manifest_data = json.load(f)
    except IOError as e:
        raise Exception("Please build frontend or run frontend dev server") from e
    return {
        "{}.js".format(entry_point): {"source": source_file}
        for entry_point, source_file in manifest_data["inputs"].items()
    }