How many unique LEGO themes were present in the year 2015?
How many unique LEGO themes were present in the year 2015?: a task in SmolDataEnvs-harbor-train-sandbox: 📊 SmolDataEnvs: Harbor (train) (Harbor dataset). Files (in /home/user/input, no subfolders): - colors.csv - sets.csv - themes.csv
The task
Files (in /home/user/input, no subfolders): - colors.csv - sets.csv - themes.csv