def export_task(self, img, cont):
        """
        Creates a task to export the specified image to the swift container
        named in the 'cont' parameter. If the container does not exist, a
        NoSuchContainer exception is raised.

        The 'img' parameter can be either an Image object or the ID of an
        image. If these do not correspond to a valid image, a NotFound
        exception is raised.
        """
        return self._tasks_manager.create("export", img=img, cont=cont)
Creates a task to export the specified image to the swift container
        named in the 'cont' parameter. If the container does not exist, a
        NoSuchContainer exception is raised.

        The 'img' parameter can be either an Image object or the ID of an
        image. If these do not correspond to a valid image, a NotFound
        exception is raised.