def _get_csv_reader_from_read_url(self, read_url: str) -> None:
        """Makes a get request to the signed read url and returns the .csv file."""
        request = Request(read_url, method="GET")
        with urllib.request.urlopen(request) as response:
            buffer = io.StringIO(response.read().decode("utf-8"))
            reader = csv.reader(buffer)

        return reader
Makes a get request to the signed read url and returns the .csv file.
lightly/api/api_workflow_upload_embeddings.py