From the issue queue, I understand this module needs to be actively maintained.
I using this module for a few projects.
I posted a patch at
https://www.drupal.org/project/bat/issues/3348620#comment-14971356
🐛
More unit types for bat_unit_load_multiple
Needs review
Motivation: This module provides useful features required for web applications where a reservation workflow is involved. Having this module well maintained will allow coders and site builders an easier usage of this module.
I hope more active users will be involved in the maintenance of the BAT module
I'm offering a few hours per month to co-maintain BAT module
Fixed
1.0
Miscellaneous