/**
 * Deep Clone Utility
 *
 * Properly deep clones objects, handling edge cases that JSON.parse(JSON.stringify()) misses:
 * - Preserves Date objects
 * - Handles undefined values (by omitting them, which is acceptable for our use case)
 * - Handles null values correctly
 * - Works with plain objects and arrays
 * - Handles Map, Set, RegExp, TypedArrays, ArrayBuffer
 * - Throws on circular references (fail-fast is better than silent corruption)
 *
 * This is a comprehensive deep clone implementation suitable for production use.
 * Moved from @revealui/ai/memory/utils/deep-clone.ts to @revealui/core/utils/deep-clone.ts
 * for shared usage across the framework.
 */
/**
 * Deep clones a plain object or array.
 *
 * @param obj - Object to clone
 * @param visited - Internal parameter to track visited objects (for circular reference detection)
 * @returns Deep cloned object
 * @throws Error if object contains circular references
 */
export declare function deepClone<T>(obj: T, visited?: WeakMap<object, unknown>): T;
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