/**
 * Type of `act` from `@testing-library/react` if it exists,
 * otherwise defaults to compatible type.
 */
export type ActType = (cb: () => void | Promise<void>) => void | Promise<void>;
/**
 * Re-exports `act` from `"@testing-library/react"` in React18+
 * or from `"@testing-library/react-hooks"` in React17 environments
 */
export declare const act: ActType;
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