/**
 * ⚠️ Sets null property to not be seen as a plain object
 *
 * - This way the library can detect its objects even if multiple instances of the
 *   library are in memory
 */
export interface ReplaceIt<X = unknown> {
    __replaceIt: X;
}
/**
 * ⚠️ Sets null property to not be seen as a plain object
 *
 * - This way the library can detect its objects even if multiple instances of the
 *   library are in memory
 */
export declare function replaceIt<X>(x: X): ReplaceIt<X>;
export declare function isReplaceIt(x: unknown): x is ReplaceIt;
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