code: def initialize_root(self, *args, **kwargs):
      assert False
  
imports: import warnings
  from contextlib import contextmanager
  from collections import defaultdict
  from .util import subvals, toposort
  from .wrap_util import wraps
label_desc: Use image node_id 2 for calling the Node obj's underlying member method code with example usage: obj.initialize_root() without return types