How many entries in the dataset required correction in the 'TotalCharges' column by setting their value to…

How many entries in the dataset required correction in the 'TotalCharges' column by setting their value to…: a task in SmolDataEnvs-harbor-train (Harbor dataset). Files (in /home/user/input, no subfolders): - WA Fn-UseC -Telco-Customer-Churn.csv