import type { Dep } from './types';
/** Symbol for tracking iteration dependencies (forEach, keys, values, entries, size) */
export declare const ITERATION_KEY: unique symbol;
/** WeakMap to get raw object from reactive proxy */
export declare const reactiveToRaw: WeakMap<object, object>;
/** WeakMap to get reactive proxy from raw object */
export declare const rawToReactive: WeakMap<object, object>;
/**
 * Returns the raw, original object from a reactive proxy.
 * If the value is not a proxy, returns it as-is.
 */
export declare function toRaw<T>(observed: T): T;
/**
 * Checks if a value is a reactive proxy created by signal().
 */
export declare function isReactive(value: unknown): boolean;
/**
 * Checks if a value is a collection type (Set, Map, WeakSet, WeakMap).
 */
export declare function isCollection(value: unknown): value is Map<any, any> | Set<any> | WeakMap<any, any> | WeakSet<any>;
/**
 * Checks if a value is an iterable collection (Set or Map, not Weak variants).
 */
export declare function isIterableCollection(value: unknown): value is Map<any, any> | Set<any>;
/**
 * Checks if a value is an "exotic" built-in object that should NOT be proxied.
 * These objects have internal slots that cannot be accessed through Proxy.
 * Proxying them causes errors like "Method X called on incompatible receiver".
 */
export declare function shouldNotProxy(value: unknown): boolean;
/**
 * Creates instrumented collection methods that properly handle reactivity.
 * These methods call the real collection methods on the raw object while
 * tracking dependencies and triggering updates.
 *
 * `notify` is the devtools update hook — called from every write method
 * so Map/Set mutations are visible to the panel. Pass a no-op when
 * devtools isn't relevant. The `key` argument it receives is a
 * stringifiable identifier for the affected slot (the mutated key for
 * `add`/`set`/`delete`, or a synthetic `'clear'` marker for `clear`).
 */
export declare function createCollectionInstrumentations(target: any, depsMap: Map<string | symbol, Dep>, getOrCreateDep: (key: string | symbol) => Dep, notify?: (key: string | symbol) => void): {
    instrumentations: Record<string | symbol, any>;
    setProxy(p: any): void;
};
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