src/vs/platform/sharedProcess/electron-browser/sharedProcessWorkerMain.ts/create
export function create(): { onmessage: (message: ISharedProcessToWorkerMessage, transfer?: Transferable[]) => void } {
	const sharedProcessWorkerMain = new SharedProcessWorkerMain();

	// Signal we are ready
	send({ id: SharedProcessWorkerMessages.Ready });

	return {
		onmessage: (message, transfer) => sharedProcessWorkerMain.onMessage(message, transfer)
	};
}