code: def enable_deploy_key(self, project, key_id):
          
          url = '/projects/{project}/deploy_keys/{key_id}/enable'.format(
              project=project, key_id=key_id)
          return self.post(url, default_response={})
docs: Enables a deploy key for a project.
  
          >>> gitlab = Gitlab(host='http://localhost:10080', verify_ssl=False)
          >>> gitlab.login(user='root', password='5iveL!fe')
          >>> gitlab.enable_deploy_key(15, 5)
  
          :param project: The ID or URL-encoded path of the project owned by the authenticated user
          :param key_id: The ID of the deploy key
          :return: A dictionary containing deploy key details
          :raise: HttpError: If invalid response returned