Hello everyone, I have code to check whether the user is in certain group or not. If the user not in this particular group, i want to add css class for certain element in mrp bom print pdf. But what happened is the css class always added even though the user is in the group. The condition that i applied in my code is not working. Is there anybody know why my code doesn't work?

@api.model    

def _get_report_values(self, docids, data=None):        
        res = super(ReportBomStructure, self)._get_report_values(docids, data)        

​docs = res['docs']                

​new_docs = []                

​for document in docs:                         ​ ​

​​document['is_inventory_cost'] = self.env.user.user_has_groups('__export__.res_groups_85_c36ec13a')     

       ​ ​new_docs.append(document)                    

​res['docs'] = new_docs                

​return res

template id="report_mrp_bom_inherited_andini" inherit_id="mrp.report_mrp_bom">

xpath expr="//*[hasclass('o_mrp_bom_cost')]" position="attributes">                

​ ​ t-if="data['is_inventory_cost'] != True">                     

​ ​ ​attribute name="class" add="mrp_cost_hide" separator=" "/>    

​ ​/t>            

​/xpath>