code: def _jupyter_labextension_paths():
      """Called by Jupyter Lab Server to detect if it is a valid labextension and
      to install the widget
      Returns
      =======
      src: Source directory name to copy files from. Webpack outputs generated files
          into this directory and Jupyter Lab copies from this directory during
          widget installation
      dest: Destination directory name to install widget files to. Jupyter Lab copies
          from `src` directory into <jupyter path>/labextensions/<dest> directory
          during widget installation
      """
      return [
          {
              "src": "labextension",
              "dest": "vegafusion-jupyter",
          }
      ]
  
file_path: vegafusion/python/vegafusion-jupyter/vegafusion_jupyter/__init__.py
imports: import altair
  from vegafusion import RendererTransformerEnabler
  from .None import renderer
  from .None import widget
  from .widget import VegaFusionWidget
  from ._version import __version__
label_desc: Use image node_id 3 for calling a global function with example usage: _jupyter_labextension_paths() and returns: list