import { AIMessage, AIResponse, BifrostOptions, ChatOptions, EmbeddingOptions, EmbeddingResponse, ImageDescriptionOptions, ImageEmbeddingOptions, ImageGenerationOptions, ImageGenerationResponse } from '../types';
import { BifrostAdmin } from './gateway-admin';
import { OpenAIProvider } from './openai';
/**
 * Bifrost provider implementation.
 *
 * Bifrost exposes OpenAI-compatible inference and governance admin APIs. This
 * provider reuses the OpenAI-compatible transport for inference and exposes
 * `admin` for tenant project and virtual-key provisioning.
 */
export declare class BifrostProvider extends OpenAIProvider {
    readonly admin: BifrostAdmin;
    private readonly configuredDefaultModel?;
    private readonly resolvedModelCache;
    constructor(options: BifrostOptions);
    private resolveModel;
    private selectModel;
    chat(messages: AIMessage[], options?: ChatOptions): Promise<AIResponse>;
    stream(messages: AIMessage[], options?: ChatOptions): AsyncIterable<string>;
    describeImage(image: string | Buffer, prompt?: string, options?: ImageDescriptionOptions): Promise<string>;
    embed(text: string | string[], options?: EmbeddingOptions): Promise<EmbeddingResponse>;
    embedImage(image: string | Buffer, options?: ImageEmbeddingOptions): Promise<EmbeddingResponse>;
    generateImage(prompt: string, options?: ImageGenerationOptions): Promise<ImageGenerationResponse>;
}
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