import { ChatRequest, ChatResponse, HUALiteConfig, EventListener } from './types';
export declare class HUALiteClient {
    private apiKey;
    private config;
    private eventListeners;
    constructor(apiKey: string, config?: HUALiteConfig);
    on(event: string, listener: EventListener): void;
    off(event: string, listener: EventListener): void;
    private emit;
    private validateChatRequest;
    private makeRequest;
    chat(request: ChatRequest): Promise<ChatResponse>;
    issueKey(): Promise<string>;
    getApiKey(): string;
    getConfig(): Required<HUALiteConfig>;
    updateConfig(newConfig: Partial<HUALiteConfig>): void;
}