docstr: Makes a get request to the signed read url and returns the .csv file.
docstr_tok: ["Makes","a","get","request","to","the","signed","read","url","and","returns","the",".csv","file","."]
code: 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
  
file_path: lightly/lightly/api/api_workflow_upload_embeddings.py
imports: import csv
  import io
  import tempfile
  import urllib.request
  from datetime import datetime
  from typing import List
  from urllib.request import Request
  from lightly.api.utils import retry
  from lightly.openapi_generated.swagger_client.models import DatasetEmbeddingData, DimensionalityReductionMethod, Trigger2dEmbeddingJobRequest, WriteCSVUrlData
  from lightly.utils import io
label_desc: Use image node_id 1 for calling the _UploadEmbeddingsMixin obj's underlying member method code with example usage: obj._get_csv_reader_from_read_url(read_url) and returns: reader