code: def test_add_image_as_bytestream(ses):
      with open("test1.jpg", "rb") as f:
          ses.add_image(
              "bytestream_test", img=f.read(), bytestream=True
          )
      assert True
  
imports: import pytest
  import os
  import hashlib
  from elasticsearch import Elasticsearch, ConnectionError, RequestError, NotFoundError
  from time import sleep
  from image_match.elasticsearch_driver import SignatureES
  from PIL import Image
label_desc: Use image node_id 10 for calling a global function with example usage: test_add_image_as_bytestream(ses) without return types