import type { OptLazy } from './internal.cjs';
/**
 * A type that is either a value T or a promise yielding a value of type T.
 * @typeparam T - the value type
 */
export type MaybePromise<T> = T | Promise<T>;
/**
 * A potentially lazy and/or asynchronous value of type T.
 * @typeparam T - the value type
 * @typeparam A - (default: []) types of the argument array that can be passed in the lazy case
 */
export type AsyncOptLazy<T, A extends any[] = []> = OptLazy<MaybePromise<T>, A>;
export declare namespace AsyncOptLazy {
    /**
     * Returns the value or promised value contained in an `AsyncOptLazy` instance of type T.
     * @param optLazy - the `AsyncOptLazy` value of type T
     * @param args - when needed, the extra arguments to pass to the lazy invocation
     * @typeparam T - the value type
     * @typeparam A - (default: []) types of the argument array that can be passed in the lazy case
     * @example
     * ```ts
     * AsyncOptLazy.toMaybePromise(1)              // => 1
     * AsyncOptLazy.toMaybePromise(() => 1)        // => 1
     * AsyncOptLazy.toMaybePromise(() => () => 1)  // => () => 1
     * AsyncOptLazy.toMaybePromise(async () => 1)  // => Promise(1)
     * AsyncOptLazy.toMaybePromise(Promise.resolve(1))  // => Promise(1)
     * ```
     */
    function toMaybePromise<T, A extends any[] = []>(optLazy: AsyncOptLazy<T, A>, ...args: A): MaybePromise<T>;
    /**
     * Returns the value contained in an `AsyncOptLazy` instance of type T as a promise.
     * @param optLazy - the `AsyncOptLazy` value of type T
     * @param args - when needed, the extra arguments to pass to the lazy invocation
     * @typeparam T - the value type
     * @typeparam A - (default: []) types of the argument array that can be passed in the lazy case
     * @example
     * ```ts
     * AsyncOptLazy.toPromise(1)              // => Promise(1)
     * AsyncOptLazy.toPromise(() => 1)        // => Promise(1)
     * AsyncOptLazy.toPromise(() => () => 1)  // => Promise(() => 1)
     * AsyncOptLazy.toPromise(async () => 1)  // => Promise(1)
     * AsyncOptLazy.toPromise(Promise.resolve(1))  // => Promise(1)
     * ```
     */
    function toPromise<T, A extends any[] = []>(optLazy: AsyncOptLazy<T, A>, ...args: A): Promise<T>;
}