/**
 * Object Utilities
 *
 * Provides utilities for working with nested object paths and property access.
 *
 * @fileoverview Object manipulation utilities
 */
/**
 * Sets a value at a nested path in an object, creating intermediate objects as needed.
 *
 * @param obj - The target object to modify
 * @param path - Dot-separated path to the property (e.g., 'user.profile.name')
 * @param value - The value to set at the path
 *
 * @example
 * ```typescript
 * const obj = { user: { id: 1 } };
 * setNestedProperty(obj, 'user.profile.name', 'John');
 * // Result: { user: { id: 1, profile: { name: 'John' } } }
 * ```
 */
export declare function setNestedProperty(obj: Record<string, unknown>, path: string, value: unknown): void;
/**
 * Gets a value at a nested path in an object.
 *
 * @param obj - The source object to read from
 * @param path - Dot-separated path to the property (e.g., 'user.profile.name')
 * @param defaultValue - Optional default value if the path doesn't exist
 * @returns The value at the path, or defaultValue if not found
 *
 * @example
 * ```typescript
 * const obj = { user: { profile: { name: 'John' } } };
 * getNestedProperty(obj, 'user.profile.name'); // 'John'
 * getNestedProperty(obj, 'user.settings.theme', 'dark'); // 'dark' (default)
 * ```
 */
export declare function getNestedProperty<T = unknown>(obj: Record<string, unknown>, path: string, defaultValue?: T): T | undefined;
/**
 * Checks if a nested path exists in an object.
 *
 * @param obj - The object to check
 * @param path - Dot-separated path to check (e.g., 'user.profile.name')
 * @returns True if the path exists and is not undefined
 *
 * @example
 * ```typescript
 * const obj = { user: { profile: { name: 'John' } } };
 * hasNestedProperty(obj, 'user.profile.name'); // true
 * hasNestedProperty(obj, 'user.settings.theme'); // false
 * ```
 */
export declare function hasNestedProperty(obj: Record<string, unknown>, path: string): boolean;
/**
 * Object utilities namespace for convenient grouped access.
 *
 * @example
 * ```typescript
 * import { ObjectUtils } from '@plyaz/core/utils';
 *
 * ObjectUtils.setNestedProperty(obj, 'user.name', 'John');
 * const name = ObjectUtils.getNestedProperty(obj, 'user.name');
 * ```
 */
export declare const ObjectUtils: {
    readonly setNestedProperty: typeof setNestedProperty;
    readonly getNestedProperty: typeof getNestedProperty;
    readonly hasNestedProperty: typeof hasNestedProperty;
};
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