import Writer from 'writer-sdk';
import { Chat } from '@hashbrownai/core';
/**
 * The options for the Writer text stream.
 */
type BaseWriterTextStreamOptions = {
    /**
     * The API Key for the Writer API.
     */
    apiKey: string;
    /**
     * The request for the stream.
     */
    request: Chat.Api.CompletionCreateParams;
    /**
     * A function to transform the request options.
     */
    transformRequestOptions?: (options: Writer.Chat.ChatChatParams) => Writer.Chat.ChatChatParams | Promise<Writer.Chat.ChatChatParams>;
};
type ThreadPersistenceOptions = {
    loadThread: (threadId: string) => Promise<Chat.Api.Message[]>;
    saveThread: (thread: Chat.Api.Message[], threadId?: string) => Promise<string>;
};
type ThreadlessOptions = BaseWriterTextStreamOptions & {
    loadThread?: undefined;
    saveThread?: undefined;
};
type ThreadfulOptions = BaseWriterTextStreamOptions & ThreadPersistenceOptions;
export type WriterTextStreamOptions = ThreadlessOptions | ThreadfulOptions;
/**
 * Streams text from the Writer API.
 *
 * @param options - The options for the stream.
 * @returns An async iterable of Uint8Arrays.
 */
export declare function text(options: ThreadfulOptions): AsyncIterable<Uint8Array>;
export declare function text(options: ThreadlessOptions): AsyncIterable<Uint8Array>;
export {};