code: def _log(self, msg):
      if self.verbose:
          # Use print to show up in JupyterLab Log pane
          print(f"VegaFusionWidget(py): {msg}")
  
file_path: vegafusion/python/vegafusion-jupyter/vegafusion_jupyter/widget.py
imports: from ipywidgets import DOMWidget
  from traitlets import Unicode, Bool, Float, CBytes, observe
  import time
  import logging
  from ._frontend import module_name, module_version
  import altair
  import json
label_desc: Use image node_id 2 for calling the VegaFusionWidget obj's underlying member method code with example usage: obj._log(msg) without return types