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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 on_put(self, req, resp, handler=None, **kwargs):
 """Respond on PUT HTTP request assuming resource update flow. This request handler assumes that PUT requests are associated with resource update/modification. Thus default flow for such requests is: * Modify existing resource instance and prepare its representation by calling its update method handler. * Set response status code to ``202 Accepted``. Args: req (falcon.Request):
 request object instance. resp (falcon.Response):
 response object instance to be modified handler (method):
 update method handler to be called. Defaults to ``self.update``. **kwargs: additional keyword arguments retrieved from url template. """

        self.handle(
            handler or self.update, req, resp, **kwargs
        )
        resp.status = falcon.HTTP_ACCEPTED