old_contents: import json
  from .cfg import jira_cfg
  from .request import Request, Field
  
  
  class SprintBacklogRequest(Request):
      # ToDo: move to json cfg file as response key item to parse
      __KEY_BACKLOG_ITEMS = 'issues'
  
      def __init__(self, login, pswd):
          with open(jira_cfg[__class__.__name__]) as cfg_file:
              Request.__init__(self, json.load(cfg_file, strict=False), login, pswd, is_multipage=True)
  
      def _parse_response(self, response, out_data):
          backlog = []
          Field._parse_field(response, self._response_cfg[self._content_root], backlog)
          for issue in backlog:
              out_data.update({issue[Field.FIELD_KEY]:issue})
              self._logger.debug('issue: {}'.format(issue))
          return out_data
  
  
new_contents: import json
  from .cfg import jira_cfg
  from .request import Request, Field
  
  
  class SprintBacklogRequest(Request):
      def __init__(self, login, pswd):
          with open(jira_cfg[__class__.__name__]) as cfg_file:
              Request.__init__(self, json.load(cfg_file, strict=False), login, pswd, is_multipage=True)
  
      def _parse_response(self, response, out_data):
          backlog = []
          Field._parse_field(response, self._response_cfg[self._content_root], backlog)
          for issue in backlog:
              out_data.update({issue[Field.FIELD_KEY]:issue})
              self._logger.debug('issue: {}'.format(issue))
          return out_data
  
  
subject: remove deprecated constant