import { Channel, PresenceChannel } from "pusher-js";
/**
 * Subscribe to a channel
 *
 * @param channelName The name of the channel you want to subscribe to.
 * @typeparam Type of channel you're subscribing to. Can be one of `Channel` or `PresenceChannel` from `pusher-js`.
 * @returns Instance of the channel you just subscribed to.
 *
 * @example
 * ```javascript
 * const channel = useChannel("my-channel")
 * channel.bind('some-event', () => {})
 * ```
 */
export declare function useChannel<T extends Channel & PresenceChannel>(channelName: string | undefined): (Channel & PresenceChannel) | undefined;