class_docstr: Error when parsing a docstring.
class_docstr_tok: ["Error","when","parsing","a","docstring","."]
code: def __str__(self):
      message = self.args[0]
      if hasattr(self, "docstring"):
          message = f"{message} in {self.docstring}"
      return message
  
imports: import warnings
label_desc: Use image node_id 1 for calling the ParseError obj's underlying member method code with example usage: obj.__str__() and returns: message