import { FlattenOptions } from '../types';
/**
 * Flattens a nested object structure into a single-level object with dot-notation keys.
 *
 * @template T - The type of the object to flatten
 * @param {T} obj - The object to flatten
 * @param {FlattenOptions} [options] - Options for flattening behavior
 * @returns {Record<string, unknown>} A flattened object
 *
 * @example
 * ```typescript
 * const obj = {
 *   user: {
 *     name: 'John',
 *     address: { city: 'NY' }
 *   }
 * };
 * const flat = flattenObject(obj);
 * // { 'user.name': 'John', 'user.address.city': 'NY' }
 * ```
 */
export declare function flattenObject<T extends object>(obj: T, options?: FlattenOptions): Record<string, unknown>;