What is the total number of unique names and surnames combined in the police killings dataset?

What is the total number of unique names and surnames combined in the police killings dataset?: a task in data-agent-harbor-train (Harbor dataset). Files (in /home/user/input, no subfolders): - PercentagePeopleBelowPovertyLevel.csv - PercentOver25CompletedHighSchool.csv -…