@classmethod
def get_structure(cls, offset=0):
    """
        Get a string representing the structure of the class.

        This methods returns a string with lines in the format "- index (type)", where index is the one used to access
        a subitem and type is the class of that item.

        Args:
            offset: Two spaces times this number will be used to indent the returned string. This is used to generate a
                    multi-level description.

        Returns:
            (str): A representation of the structure of the class.

        """
    return ''
