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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def visualize(self, filename="mydask", format=None, **kwargs):
 """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. """

        check_is_fitted(self, "dask_graph_")
        return dask.visualize(
            self.dask_graph_, filename=filename, format=format, **kwargs
        )