code: def filter_log_events(awsclient, log_group_name, start_ts, end_ts=None):
      
      client_logs = awsclient.get_client('logs')
      # TODO use all_pages instead!
      logs = []
      next_token = None
      while True:
          request = {
              'logGroupName': log_group_name,
              'startTime': start_ts
          }
          if end_ts:
              request['endTime'] = end_ts
          if next_token:
              request['nextToken'] = next_token
          response = client_logs.filter_log_events(**request)
          logs.extend(
              [{'timestamp': e['timestamp'], 'message': e['message']}
               for e in response['events']]
          )
          if 'nextToken' not in response:
              break
          next_token = response['nextToken']
      return logs
docs: Note: this is used to retrieve logs in ramuda.
  
      :param log_group_name: log group name
      :param start_ts: timestamp
      :param end_ts: timestamp
      :return: list of log entries