/**
 * Object Merging Utilities
 * Common utility functions for deep merging objects, arrays, and interceptors
 */
/**
 * Check if value is a mergeable object (not array, not null)
 */
export declare function isMergeableObject(value: unknown): value is Record<string, unknown>;
/**
 * Handle array merging strategy
 */
export declare function handleArrayMerge(key: string, existing: unknown, value: unknown, result: Record<string, unknown>): boolean;
/**
 * Handle object merging strategy
 */
export declare function handleObjectMerge<T>(key: string, existing: unknown, value: unknown, result: Record<string, unknown>): boolean;
/**
 * Deep merge utility for configuration objects
 * Later values override earlier ones, arrays are concatenated
 *
 * @param objects - Objects to merge (later objects override earlier ones)
 * @returns Merged object
 *
 * @example
 * ```typescript
 * const result = deepMerge(
 *   { a: 1, b: { x: 1 } },
 *   { a: 2, b: { y: 2 } }
 * );
 * // Result: { a: 2, b: { x: 1, y: 2 } }
 * ```
 */
export declare function deepMerge<T = Record<string, unknown>>(...objects: Array<Partial<T> | Record<string, unknown>>): T;
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