from openai import OpenAIclient = OpenAI( base_url="https://api.keywordsai.co/api/", api_key="YOUR_KEYWORDSAI_API_KEY",)response = client.chat.completions.create( model="gpt-4o-mini", # any model that supports image variables messages=[{"role":"user", "content":"Tell me a long story"}], extra_body={ "variables": { "image_variable": {"_type": "image_url", "value": "url_string"} } }, )