code: def visualize(self, filename="mydask", format=None, **kwargs):
          
          check_is_fitted(self, "dask_graph_")
          return dask.visualize(
              self.dask_graph_, filename=filename, format=format, **kwargs
          )
docs: Render the task graph for this parameter search using ``graphviz``.
  
          Requires ``graphviz`` to be installed.
  
          Parameters
          ----------
          filename : str or None, optional
              The name (without an extension) of the file to write to disk.  If
              `filename` is None, no file will be written, and we communicate
              with dot using only pipes.
          format : {'png', 'pdf', 'dot', 'svg', 'jpeg', 'jpg'}, optional
              Format in which to write output file.  Default is 'png'.
          **kwargs
              Additional keyword arguments to forward to
              ``dask.dot.to_graphviz``.
  
          Returns
          -------
          result : IPython.diplay.Image, IPython.display.SVG, or None
              See ``dask.dot.dot_graph`` for more information.