import { Predicate } from './Predicate.js';
/**
 * @desc Ensures that the `value` is an instance of `type`.
 * This predicate handles the dual-package hazard where the same class loaded
 * from different module formats (ESM/CJS) creates distinct constructor functions.
 *
 * @example
 * import { ensure, isInstanceOf, TinyType } from 'tiny-types';
 *
 * class Birthday extends TinyType {
 *     constructor(public readonly value: Date) {
 *         ensure('Date', value, isInstanceOf(Date));
 *     }
 * }
 *
 * @param {Constructor<T>} type
 * @returns {Predicate<T>}
 */
export declare function isInstanceOf<T>(type: new (...args: any[]) => T): Predicate<T>;
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