'create_date': fields.datetime('Creation Date', readonly=True),
'opening_date': fields.datetime('Assignation Date', readonly=True),
'date_closed': fields.datetime('Close Date', readonly=True),
'create_date': fields.datetime('Creation Date', readonly=True),
'opening_date': fields.datetime('Assignation Date', readonly=True),
'date_closed': fields.datetime('Close Date', readonly=True),