export declare const COSTS: { "gpt-3.5-turbo": { prompt: number; completion: number; }; "gpt-3.5-turbo-0301": { prompt: number; completion: number; }; "gpt-4-0314": { prompt: number; completion: number; }; "gpt-4": { prompt: number; completion: number; }; "text-embedding-ada-002": { prompt: number; completion: number; }; };