What is the most common dual-type Pokémon combination across all generations, and what is its total count?

What is the most common dual-type Pokémon combination across all generations, and what is its total count?: a task in SmolDataEnvs-harbor-train-sandbox: 📊 SmolDataEnvs: Harbor (train) (Harbor dataset). Files (in /home/user/input, no subfolders): - Pokemon.csv