Those 2 methods are used in enterprise (for now) in order to get employee unavailabilities. This is used for planning and forecast gantt view. As we didn't want to create a bridge module for those 2 methods, we place them here as 'hr' is the only one common dependency between forecast and planning. Task-2024216 closes odoo/odoo#34638 Signed-off-by: Jérome Maes (jem) <jem@openerp.com>