import { z } from "zod";
import type { JsonCompletion, Provider } from "./index.js";
export declare const ResponseFormat: z.ZodEnum<{
    json_object: "json_object";
    none: "none";
}>;
export type ResponseFormat = z.infer<typeof ResponseFormat>;
/**
 * What an output limit is called on this endpoint.
 *
 * OpenAI renamed the field to `max_completion_tokens` and its newer models
 * reject the old one; the servers that copied the API before that rename —
 * DeepSeek, Ollama, llama.cpp and the rest — only know `max_tokens`. There is
 * no spelling both accept, so the caller says which endpoint it is talking to
 * rather than the request guessing from a hostname.
 */
export type TokenLimitField = "max_tokens" | "max_completion_tokens";
/**
 * The `/chat/completions` shape. The system prompt is the first message rather
 * than a separate field.
 */
export declare const openAiCompleteJson: (provider: Provider, request: JsonCompletion, tokenLimitField: TokenLimitField, responseFormat: ResponseFormat) => Promise<string>;
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