code: def __call__(cls, *args, **kwargs):
      cls, args, kwargs = cls.doprenew(*args, **kwargs)
      _obj, args, kwargs = cls.donew(*args, **kwargs)
      _obj, args, kwargs = cls.dopreinit(_obj, *args, **kwargs)
      _obj, args, kwargs = cls.doinit(_obj, *args, **kwargs)
      _obj, args, kwargs = cls.dopostinit(_obj, *args, **kwargs)
      return _obj
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  from collections import OrderedDict
  import itertools
  import sys
  import backtrader
  from .utils.py3 import zip, string_types, with_metaclass
label_desc: Use image node_id 6 for calling the MetaBase obj's underlying member method code with example usage: obj.__call__(cls) and returns: _obj