code: def incompletedIssuesEstimateSum(self, board_id, sprint_id):
          
          return self._get_json('rapid/charts/sprintreport?rapidViewId=%s&sprintId=%s' % (board_id, sprint_id),
                                base=self.AGILE_BASE_URL)['contents']['incompletedIssuesEstimateSum']['value']
docs: Return the total incompleted points this sprint.