/**
 * Utility functions for working with objects
 */
/**
 * Utility class for object operations
 */
export declare class ObjectUtils {
    /**
     * Deep merge multiple objects
     */
    static deepMerge<T extends Record<string, any>>(target: T, ...sources: Partial<T>[]): T;
    /**
     * Check if value is a plain object
     */
    static isObject(item: any): item is Record<string, any>;
    /**
     * Deep clone an object
     */
    static deepClone<T>(obj: T): T;
    /**
     * Get nested property value safely
     */
    static get<T = any>(obj: any, path: string, defaultValue?: T): T | undefined;
    /**
     * Set nested property value
     */
    static set(obj: any, path: string, value: any): void;
    /**
     * Check if object has nested property
     */
    static has(obj: any, path: string): boolean;
    /**
     * Pick specific properties from object
     */
    static pick<T extends Record<string, any>, K extends keyof T>(obj: T, keys: K[]): Pick<T, K>;
    /**
     * Omit specific properties from object
     */
    static omit<T extends Record<string, any>, K extends keyof T>(obj: T, keys: K[]): Omit<T, K>;
    /**
     * Get all keys from nested object
     */
    static getAllKeys(obj: any, prefix?: string): string[];
    /**
     * Flatten nested object
     */
    static flatten(obj: any, prefix?: string): Record<string, any>;
    /**
     * Unflatten object (reverse of flatten)
     */
    static unflatten(obj: Record<string, any>): any;
    /**
     * Check if two objects are deeply equal
     */
    static isEqual(obj1: any, obj2: any): boolean;
}
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