def METHOD_NAME(self):
    METHOD_NAME = super().METHOD_NAME
    # want to ensure `num_of_submissions` and `attachment_storage_bytes`
    # exist in the data and are integers
    if not METHOD_NAME.get('num_of_submissions'):
        METHOD_NAME['num_of_submissions'] = 0
    if not METHOD_NAME.get('attachment_storage_bytes'):
        METHOD_NAME['attachment_storage_bytes'] = 0
    return METHOD_NAME