code: def get_image():
      image_url = "https://raw.githubusercontent.com/simo23/tinyYOLOv2/master/person.jpg"
      img = Image.open(check_exist_or_download(image_url))
      img = img.resize((416, 416))
      return img
  
file_path: singa/examples/onnx/tiny_yolov2.py
imports: import os
  import numpy
  from PIL import Image, ImageDraw
  from singa import device
  from singa import tensor
  from singa import sonnx
  import onnx
  from utils import download_model, check_exist_or_download
  import logging
label_desc: Use image node_id 2 for calling a global function with example usage: get_image() and returns: img