for_rohan

   def mergeSlots(self):
        for slotid in self.match:
            data = self.match[slotid]
            if data['emp_id'] not in self.mergedict:
                self.mergedict[data['emp_id']] = {}
            if data['skill'] not in self.mergedict[data['emp_id']]:
                self.mergedict[data['emp_id']][data['skill']] = {}
            if data['date'] not in self.mergedict[data['emp_id']][data['skill']]:
                self.mergedict[data['emp_id']][data['skill']][data['date']] = [[],[]]
            lst = self.mergedict[data['emp_id']][data['skill']][data['date']]
            lst[0].append(data['start_time'])
            lst[1].append(data['end_time'])

        iter = 0
        return_dict = {}
        for emp_id in self.mergedict:
            for skill in self.mergedict[emp_id]:
                for date in self.mergedict[emp_id][skill]:
                    merged_lst_lwr=[]
                    merged_lst_upr=[]
                    lst = self.mergedict[emp_id][skill][date]
                    indices = np.argsort(lst[0])
                    lst[0].sort()
                    lst[1] = [lst[1][i] for i in indices]
                    itr = 0
                    for idx in range(len(lst[0])):
                        # if conditions
                        if idx > 0 and lst[0][idx] == lst[1][idx-1]:
                            merged_lst_upr[itr - 1] = lst[1][idx]
                        else:
                            itr += 1
                            merged_lst_lwr.append(lst[0][idx])
                            merged_lst_upr.append(lst[1][idx])

                    for i in range(len(merged_lst_lwr)):
                        iter += 1
                        assign_dict={}
                        assign_dict['datetimeslot'] = iter
                        assign_dict['skill'] = skill
                        assign_dict['name'] = self.names[emp_id]
                        assign_dict['emp_id'] = emp_id
                        assign_dict['edge_weight'] = 0
                        assign_dict['date'] = date
                        assign_dict['start_time'] = merged_lst_lwr[i]
                        assign_dict['end_time'] = merged_lst_upr[i]
                        return_dict[iter] = assign_dict

        return return_dict