I have this API Script, got error "FUNCTION_INVOCATION_TIMEOUT" please fix this, and Make it vercel Function according. When user enter like this big propmt so faced this error. I hope you fix this, remember again when user enter big prompt then faced like this error. User can enter to much big prompt but always get response. And also another issue when asking to make code or program code then also got error. When I do in my local host then get response code "" but when I do in Vercel then get "FUNCTION_INVOCATION_TIMEOUT" so api also provide script and code without error. Here is full code please update this full complate code ""

Please you update here, with complete full code "" and also Genrate code and script without any error