import type { DirectModelClient } from "./types";
export interface AnthropicClientOptions {
    readonly apiKey: string;
    readonly model: string;
    /** Default "https://api.anthropic.com". Trailing slashes are stripped. */
    readonly baseURL?: string;
    /** Default "2023-06-01" (current Messages API). */
    readonly anthropicVersion?: string;
    /** Test injection point. Defaults to globalThis.fetch. */
    readonly fetchImpl?: typeof fetch;
}
export declare function createAnthropicClient(opts: AnthropicClientOptions): DirectModelClient;