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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 find_handler( self, request: httputil.HTTPServerRequest, **kwargs: Any ) -> Optional[httputil.HTTPMessageDelegate]: """Must be implemented to return an appropriate instance of `~.httputil.HTTPMessageDelegate` that can serve the request. Routing implementations may pass additional kwargs to extend the routing logic. :arg httputil.HTTPServerRequest request: current HTTP request. :arg kwargs: additional keyword arguments passed by routing implementation. :returns: an instance of `~.httputil.HTTPMessageDelegate` that will be used to process the request. """

        raise NotImplementedError()