Koha-clms/installer/data/mysql/en/optional/sample_notices_message_attributes.sql

insert into `message_attributes`
(`message_attribute_id`, message_name, `takes_days`)
values
(1, 'Item DUE', 0),
(2, 'Advance Notice', 1),
(3, 'Upcoming Events', 1),
(4, 'Hold Filled', 0);