class_docstr: Raised when a defined attribute is not found in the sample
class_docstr_tok: ["Raised","when","a","defined","attribute","is","not","found","in","the","sample"]
code: def __init__(self, attribute_name, sample):
      message = "Attribute '{}' is not found in the sample: {}.".format(
          attribute_name, sample
      )
      Exception.__init__(self, message)
      self.message = message
  
label_desc: Use image node_id 1 to create a new AttributeNotFound object from inherited base classes: Exception with example: obj = AttributeNotFound(attribute_name, sample)