code: def enable(
      download_source_link=None,
      debounce_wait=30,
      debounce_max_wait=60,
      data_dir="_vegafusion_data",
  ):
      """
      Enable the VegaFusion data transformer and renderer so that all Charts
      are displayed using VegaFusion.
  
      This isn't necessary in order to use the VegaFusionWidget directly
      """
      # Import vegafusion.transformer so that vegafusion-feather transform
      # will be registered
      import vegafusion.transformer
  
      return RendererTransformerEnabler(
          renderer_ctx=alt.renderers.enable(
              "vegafusion-widget",
              debounce_wait=debounce_wait,
              debounce_max_wait=debounce_max_wait,
              download_source_link=download_source_link,
          ),
          data_transformer_ctx=alt.data_transformers.enable(
              "vegafusion-feather", data_dir=data_dir
          ),
          repr_str=f"vegafusion.enable_widget()",
      )
  
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 1 for calling a global function with example usage: enable(download_source_link, debounce_wait, debounce_max_wait, data_dir) and returns: RendererTransformerEnabler