/**
 * `runOnMainThread` allows triggering main thread functions on the main thread asynchronously.
 * @param fn - The main thread functions to be called.
 * @returns A function. Calling which with the arguments to be passed to the main thread function to trigger it on the main thread. This function returns a promise that resolves to the return value of the main thread function.
 * @example
 * ```ts
 * import { runOnMainThread } from '@lynx-js/react';
 *
 * async function someFunction() {
 *   const fn = runOnMainThread(() => {
 *     'main thread';
 *     return 'hello';
 *   });
 *   const result = await fn();
 * }
 * ```
 * @public
 */
export declare function runOnMainThread<R, Fn extends (...args: any[]) => R>(fn: Fn): (...args: Parameters<Fn>) => Promise<R>;