def METHOD_NAME(self, raw_data):
    data = {
        k: raw_data[k]
        for k in ["path"]
    }
    if "nav_shape" in raw_data:
        data["nav_shape"] = tuple(raw_data["nav_shape"])
    if "sig_shape" in raw_data:
        data["sig_shape"] = tuple(raw_data["sig_shape"])
    if "sync_offset" in raw_data:
        data["sync_offset"] = raw_data["sync_offset"]
    return data