/**
 * A promise wrapper that exposes the `resolve` and `reject` methods as part of the
 * class public API.
 *
 * It allows resolving and rejecting promises outside of the
 * promise constructor callback.
 *
 * @template T - The type of value the promise will resolve to
 *
 * @example
 * ```ts
 * const deferred = new Deferred<string>()
 *
 * // Resolve from anywhere
 * deferred.resolve('Hello')
 *
 * // Or reject
 * deferred.reject(new Error('Failed'))
 *
 * // Wait for resolution
 * await deferred.promise
 * ```
 */
export declare class Deferred<T> {
    /**
     * Function to resolve the promise with a value
     */
    resolve: (value: T | PromiseLike<T>) => void;
    /**
     * Function to reject the promise with a reason
     */
    reject: (reason?: any) => void;
    /**
     * The underlying promise instance
     */
    promise: Promise<T>;
}