/**
 * Internal utilities for the store module.
 * @internal
 */
/**
 * Check if a value is a plain object (not array, null, Date, etc.).
 * @internal
 */
export declare const isPlainObject: (value: unknown) => value is Record<string, unknown>;
/**
 * Deep clones an object. Used for deep reactivity support.
 * @internal
 */
export declare const deepClone: <T>(obj: T) => T;
/**
 * Compares two values for deep equality.
 * @internal
 */
export declare const deepEqual: (a: unknown, b: unknown) => boolean;
/**
 * Detects if nested objects were mutated but the reference stayed the same.
 * Returns the keys where nested mutations were detected.
 * @internal
 */
export declare const detectNestedMutations: <S extends Record<string, unknown>>(before: S, after: S, signalValues: Map<keyof S, unknown>) => Array<keyof S>;
/** @internal Returns whether development warnings should be enabled */
export declare const isDev: () => boolean;
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