@classmethod
def get_classname(cls, my_instance):
    """
        Return the class name of my_instance, or "Instance.None".
        :param cls: Our class.
        :param my_instance: Instance to use.
        :return: Return the class name of my_instance, or "Instance.None" in case of error/None value.
        """
    if my_instance is None:
        return 'Instance.None'
    else:
        return my_instance.__class__.__name__
