class_docstr: Error raised when attempting to retrieve a product with incorrect credentials
class_docstr_tok: ["Error","raised","when","attempting","to","retrieve","a","product","with","incorrect","credentials"]
code: def __str__(self):
      return self.msg
  
label_desc: Use image node_id 1 for calling the UnauthorizedError obj's underlying member method code with example usage: obj.__str__() and returns: self