Generate a CUSTOM t-shirt print from a text prompt (AI, takes 2-10 min). SPENDS THE ACCOUNT OWNER'S STUDIO CREDITS: tell them the cost and their balance and get a yes BEFORE calling this — never spend silently, and never spend to 'try something' on your own initiative. Credits are earned (20 free on signup, 20 with every tee bought), so a wasted one is a real loss to them. Free exception: preserve=true prints their own image as-is and costs nothing. IMPORTANT: first call studio_options and ask the human to pick placement + product (and optionally background); do NOT silently use defaults. Args: prompt (design description), product? (one of ['kids_basic_tshirt_boy', 'kids_basic_tshirt_girl', 'kids_oversize_tshirt_boy', 'kids_oversize_tshirt_girl', 'mens_basic_tshirt', 'mens_oversize_tshirt', 'womens_basic_tshirt', 'womens_oversize_tshirt']), background? (t-shirt background, one of ['washed-beige', 'washed-black', 'washed-blue', 'washed-brown', 'washed-gray', 'washed-green', 'washed-orange', 'washed-pink', 'washed-red', 'washed-yellow', 'watercolor-beige', 'watercolor-blue', 'watercolor-sky']), placement? (print size/position, one of ['portrait_extended', 'square_center', 'chest_small']), model? (nb2 default | gpt-image-2 — both 1 credit, different styles), image_url? (https link to the user's OWN image — used as style/subject reference), preserve? (true = print the user's image exactly as-is, no AI redraw — kids' drawings, own art; FREE, no credits; requires image_url). Returns print_id — poll studio_status until done.
