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def data_pre_processing(data): # Convert the 'creation_date' and 'resolution_date' columns to datetime [x.lower for x in data.columns if ] data['created_date']=pd.to_datetime(data['created_date']) data['ticket_resolution_date']=pd.to_datetime(data['ticket_resolution_date']) data['ticket_resolution_time']=data.apply(lambda row:row['ticket_resolution_date']-row['created_date'],axis=1) data['ticket_resolution_time'] =data['ticket_resolution_time'].apply(lambda x: x.total_seconds() / 3600) data.drop(columns=['ticket_resolution_date','created_date'],axis=1 ,inplace=True) data['ticket_desc'] = data['ticket_desc'].apply(preprocess_text) #print(data) return data