class_docstr: Raised when a model failed to load.
  
  Attributes:
      message -- explanation of why the model is invalid
code: def __str__(self) -> Text:
      return self.message
  
imports: import logging
  from typing import Text
  from rasa.shared.exceptions import RasaException
label_desc: Use image node_id 2 for calling the InvalidModelError obj's underlying member method code with example usage: obj.__str__() and returns: self