code: def test_jpeg2(h, f):
      """JPEG with small header"""
      if len(h) >= 32 and h[5] == 67 and h[:32] == JPEG_MARK:
          return "jpeg"
  
imports: from imghdr import tests
label_desc: Use image node_id 2 for calling a global function with example usage: test_jpeg2(h, f) and returns: str