code: def mock_image_stream():
      url = "https://miro.medium.com/max/3349/1*mk1-6aYaf_Bes1E3Imhc0A.jpeg"
      return requests.get(url).content
  
imports: import json
  import shutil
  import tempfile
  from io import BytesIO
  import cv2
  import hdf5storage
  import numpy
  import pytest
  import requests
  import scipy.io
  from PIL import Image
  from doctr.datasets.generator.base import synthesize_text_img
  from doctr.io import reader
  from doctr.utils import geometry
label_desc: Use image node_id 7 for calling a global function with example usage: mock_image_stream() and returns: requests