/// <amd-module name="file:///home/runner/work/hyperliquid/hyperliquid/src/api/subscription/_methods/notification.ts" />
import * as v from "valibot";
/**
 * Subscription to notification events for a specific user.
 * @see https://hyperliquid.gitbook.io/hyperliquid-docs/for-developers/api/websocket/subscriptions
 */
export declare const NotificationRequest: v.ObjectSchema<{
    /** Type of subscription. */
    readonly type: v.LiteralSchema<"notification", undefined>;
    /** User address. */
    readonly user: v.SchemaWithPipe<readonly [v.SchemaWithPipe<readonly [v.StringSchema<undefined>, v.RegexAction<string, undefined>, v.TransformAction<string, `0x${string}`>]>, v.LengthAction<`0x${string}`, 42, undefined>]>;
}, undefined>;
export type NotificationRequest = v.InferOutput<typeof NotificationRequest>;
/**
 * Event of user notification.
 * @see https://hyperliquid.gitbook.io/hyperliquid-docs/for-developers/api/websocket/subscriptions
 */
export type NotificationEvent = {
    /** Notification content. */
    notification: string;
};
import type { ISubscription } from "../../../transport/mod.js";
import type { SubscriptionConfig, SubscriptionOptions } from "./_base/mod.js";
/** Request parameters for the {@linkcode notification} function. */
export type NotificationParameters = Omit<v.InferInput<typeof NotificationRequest>, "type">;
/**
 * Subscribe to notification updates for a specific user.
 *
 * @param config General configuration for Subscription API subscriptions.
 * @param params Parameters specific to the API subscription.
 * @param listener A callback function to be called when the event is received.
 * @param options Options to control the subscription lifecycle.
 * @return A request-promise that resolves with a {@link ISubscription} object to manage the subscription lifecycle.
 *
 * @throws {ValidationError} When the request parameters fail validation (before sending).
 * @throws {TransportError} When the transport layer throws an error.
 *
 * @example
 * ```ts
 * import { WebSocketTransport } from "@nktkas/hyperliquid";
 * import { notification } from "@nktkas/hyperliquid/api/subscription";
 *
 * const transport = new WebSocketTransport();
 *
 * const sub = await notification(
 *   { transport },
 *   { user: "0x..." },
 *   (data) => console.log(data),
 * );
 * ```
 *
 * @see https://hyperliquid.gitbook.io/hyperliquid-docs/for-developers/api/websocket/subscriptions
 */
export declare function notification(config: SubscriptionConfig, params: NotificationParameters, listener: (data: NotificationEvent) => void, options?: SubscriptionOptions): Promise<ISubscription>;