import 'reflect-metadata';
import type { ChannelMessage } from 'mezon-sdk';
import type { TextChannel } from 'mezon-sdk/dist/cjs/mezon-client/structures/TextChannel';
import type { User as MezonUser } from 'mezon-sdk/dist/cjs/mezon-client/structures/User';
export declare const NEZON_PARAMS_METADATA = "nezon:params";
export declare function Context(): ParameterDecorator;
export declare function ChannelMessagePayload<K extends keyof ChannelMessage = never>(key?: K): ParameterDecorator;
export declare function Client(): ParameterDecorator;
export declare function MezonClient(): ParameterDecorator;
export declare function Args(): ParameterDecorator;
export declare function Arg(position?: number): ParameterDecorator;
export declare function Attachments(position?: number): ParameterDecorator;
export declare function Mentions(position?: number): ParameterDecorator;
export declare function ComponentPayload(): ParameterDecorator;
export declare function ComponentParams(paramName?: string): ParameterDecorator;
export declare function ComponentParam(positionOrName?: number | string): ParameterDecorator;
export declare function MessageContent(): ParameterDecorator;
export declare function Channel<K extends keyof TextChannel = never>(key?: K): ParameterDecorator;
export declare function Clan(): ParameterDecorator;
export declare function User<K extends keyof MezonUser = never>(key?: K): ParameterDecorator;
export declare function Message(): ParameterDecorator;
export declare function ComponentTarget(): ParameterDecorator;
/**
 * Injects an auto-generated helper tuple similar to Necord's `@Context()`.
 * Resolves to `[ManagedMessage, DMHelper, ChannelHelper]`, enabling convenience helpers.
 *
 * **Cách 1: Lấy toàn bộ tuple (backward compatible)**
 * ```ts
 * @Command('ping')
 * async onPing(@AutoContext() [message]: Nezon.AutoContext) {
 *   await message.reply(Nezon.SmartMessage.text('pong'));
 * }
 * ```
 *
 * **Cách 2: Lấy phần tử cụ thể bằng key**
 * ```ts
 * @Command('dm')
 * async onDM(
 *   @AutoContext('message') message: Nezon.AutoContextType.Message,
 *   @AutoContext('dm') dm: Nezon.AutoContextType.DM,
 * ) {
 *   await dm.send(userId, SmartMessage.text('Hello!'));
 * }
 * ```
 *
 * Available keys:
 * - `'message'` - Returns `ManagedMessage` (type: `Nezon.AutoContextType.Message`)
 * - `'dm'` - Returns `DMHelper` (type: `Nezon.AutoContextType.DM`)
 * - `'channel'` - Returns `ChannelHelper` (type: `Nezon.AutoContextType.Channel`)
 *
 * Combine với `Nezon.SmartMessage` để dựng payload gửi tin nhắn một cách an toàn.
 */
export declare function AutoContext(key?: 'message' | 'dm' | 'channel'): ParameterDecorator;
/**
 * Injects the event payload from @On or @Once handlers.
 * The payload type depends on the event being listened to.
 *
 * @example
 * ```ts
 * @On(Events.TokenSend)
 * async onTokenSend(@EventPayload() payload: Nezon.TokenSendPayload) {
 *   console.log('Token sent:', payload);
 * }
 * ```
 *
 * @example
 * ```ts
 * @On(Events.AddClanUser)
 * async onAddClanUser(@EventPayload() payload: Nezon.AddClanUserPayload) {
 *   console.log('User added:', payload.user_id);
 * }
 * ```
 */
export declare function EventPayload(): ParameterDecorator;
export declare function NezonUtils(): ParameterDecorator;
export declare function FormData(field?: string): ParameterDecorator;