code: def list_deployments(self):
          
          response = self._do_request('GET', '/v2/deployments')
          return self._parse_response(response, MarathonDeployment, is_list=True)
docs: List all running deployments.
  
          :returns: list of deployments
          :rtype: list[:class:`marathon.models.deployment.MarathonDeployment`]