/**
 * Anthropic provider — translates OpenAI canonical format to Anthropic's API.
 */
import type { LLMOptions, LLMResponse, LLMProvider } from '../types';
export declare class AnthropicProvider implements LLMProvider {
    private clientPromise;
    private apiKey;
    constructor(apiKey?: string);
    private getClient;
    call(options: LLMOptions): Promise<LLMResponse>;
}