class_docstr: For storing and accessing flags.
code: def load_b64json(self, json_string):
      json_string = base64.b64decode(json_string)
      print("!!!!!!JSON STRING!!!!!!!!")
      print(json_string)
      self.load_json(json_string)
  
file_path: magenta/magenta/models/gansynth/lib/flags.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import base64
  import json
label_desc: Use image node_id 4 for calling the Flags obj's underlying member method code with example usage: obj.load_b64json(json_string) without return types