/**
 * Run an effect only on the first render, EXACTLY ONCE.
 * regardless of the dependencies, regardless of the strict mode
 * React team thinks that it is antithetical to the React model that
 * an effect cannot be canceled or cannot be replayed. Yet the reality
 * isn't ideal and especially external 3rd party API cannot be controlled.
 */
export declare function useMountEffect(effect: () => void): void;