class_docstr: The view of a config dict where keys can be accessed like attribute, it also prevents
  naive modifications to the key-values.
  
  Parameters
  ----------
  config : dict
      The configuration dict.
  
  Attributes
  ----------
  __dict__ : type
      The internal config as a `__dict__`.
code: def is_frozen(self):
      return self.__dict__["_freeze"]
  
imports: import copy
  import warnings
  import numpy
  import autogluon.core
  from ..estimators.base_estimator import BaseEstimator
  from ..estimators import SSDEstimator, FasterRCNNEstimator, YOLOv3Estimator, CenterNetEstimator
  from ..estimators import ImageClassificationEstimator
  from ..data.dataset import ObjectDetectionDataset
label_desc: Use image node_id 3 for calling the ConfigDict obj's underlying member method code with example usage: obj.is_frozen() and returns: self