docstr: Class has already been created ... register
docstr_tok: ["Class","has","already","been","created","...","register"]
code: def __init__(cls, name, bases, dct):
      """Class has already been created ... register"""
      # Initialize the class
      super(MetaVChartFile, cls).__init__(name, bases, dct)
  
      # Register with the store
      bt.stores.VChartFile.DataCls = cls
  
file_path: backtrader/backtrader/feeds/vchartfile.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  from datetime import datetime
  from struct import unpack
  import os.path
  import backtrader
  from backtrader import date2num
label_desc: Use image node_id 1 to create a new MetaVChartFile object from inherited base classes: bt.DataBase with example: obj = MetaVChartFile(cls, name, bases, dct)