"administer bean settings" - what is it for?

What is the 'administer bean settings' permission intended for? Doing a grep of the bean code base reveals that the only reference is in in bean_permission() hook:

$ grep -rnw '.' -e "administer bean settings"
./drupal_public/docroot/sites/all/modules/contrib/bean/bean.module:644:    'administer bean settings' => array(