/**
 * Hook to provide a trigger function that calls the server defined in `PusherProviderProps.triggerEndpoint` using `fetch`.
 * Any `auth?.headers` in the config object will be passed with the `fetch` call.
 *
 * @param channelName name of channel to call trigger on
 * @typeparam TData shape of the data you're sending with the event
 *
 * @example
 * ```typescript
 * const trigger = useTrigger<{message: string}>('my-channel');
 * trigger('my-event', {message: 'hello'});
 * ```
 */
export declare function useTrigger<TData = {}>(channelName: string): (eventName: string, data?: TData) => Promise<Response>;
export declare const NO_AUTH_HEADERS_WARNING = "No auth parameters supplied to <PusherProvider />. Your events will be unauthenticated.";