/**
 * OpenKernel — OpenAI-compatible base URL normalization.
 *
 * Different consumers append different suffixes to a provider base URL:
 *   - the kernel provider and the Vercel AI SDK both ultimately POST to
 *     `<base>/chat/completions` and GET `<base>/models`.
 * Stored/preset base URLs are inconsistent — some include the API version
 * segment (`/v1`), some don't, and a few providers speak `/chat/completions`
 * directly with no version segment at all.
 *
 * `openAICompatBaseURL` returns the canonical base to which `/chat/completions`
 * (or `/models`) should be appended — with exactly one version segment where
 * the provider expects it. Using it on both surfaces guarantees the same,
 * correct URL regardless of how the base was stored.
 */
export declare function openAICompatBaseURL(baseURL: string): string;
export declare function openAICompatChatURL(baseURL: string): string;
export declare function openAICompatModelsURL(baseURL: string): string;