code: def test_stitch_creation_blank():
      w = StitchWidget()
      assert w.kernelmsg == ""
      assert w.clientmsg == ""
      assert w.srcdoc == "<p>srcdoc should be defined by the user</p>"
      assert w.initial_height == "1px"
      assert w.initial_width == "1px"
      assert w.initial_border == "0"
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_stitch_creation_blank() without return types