def enable(self, key_id, **kwargs):
        """Enable a deploy key for a project.

        Args:
            key_id (int): The ID of the key to enable
            **kwargs: Extra options to send to the server (e.g. sudo)

        Raises:
            GitlabAuthenticationError: If authentication is not correct
            GitlabProjectDeployKeyError: If the key could not be enabled
        """
        path = '%s/%s/enable' % (self.path, key_id)
        self.gitlab.http_post(path, **kwargs)