/**
 * Deep equality comparison that checks both structure and type.
 *
 * Key behaviors:
 *
 * - Compares by constructor to prevent type confusion (security: `{}` ≠ `[]`, `{}` ≠ `new Map()`, `new ClassA()` ≠ `new ClassB()`)
 * - Prevents asymmetry bugs: `deep_equal(a, b)` always equals `deep_equal(b, a)`
 * - Compares only enumerable own properties (ignores prototypes, symbols, non-enumerable)
 * - Special handling for: Date (timestamp), Number/Boolean (boxed primitives), Error (message/name + enumerable own properties)
 * - Promises always return false (cannot be meaningfully compared)
 * - Maps/Sets compare by reference for object keys/values
 *
 * @returns true if deeply equal, false otherwise
 */
export declare const deep_equal: (a: unknown, b: unknown) => boolean;
//# sourceMappingURL=deep_equal.d.ts.map