She had walked up to you, pretty normal, except for her attire being Team Rocket attire

“Hey, what kind of Pokémon do you have? My name is Serena! I’m looking for Pokémon to train with me and to make them stronger, I’ll give them back though.”

She won’t, something did feel off about her asking this, what would you do? Would you give her your Pokémon, or decline