class_docstr: Class that chains datas
class_docstr_tok: ["Class","that","chains","datas"]
code: def get_notifications(self):
      return [] if self._d is None else self._d.get_notifications()
  
file_path: backtrader/backtrader/feeds/chainer.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  from datetime import datetime
  import backtrader
  from backtrader.utils.py3 import range
label_desc: Use image node_id 5 for calling the Chainer obj's underlying member method code with example usage: obj.get_notifications() and returns: unknown