Cancel a previously submitted bundle task

        :type bundle_id: string
        :param bundle_id: The identifier of the bundle task to cancel.

def cancel_bundle_task(self, bundle_id):
        """
        Cancel a previously submitted bundle task

        :type bundle_id: string
        :param bundle_id: The identifier of the bundle task to cancel.
        """

        params = {'BundleId' : bundle_id}
        return self.get_object('CancelBundleTask', params,
                               BundleInstanceTask, verb='POST')