import { TypeCache } from '../TypeCache';
declare type Func<A extends any[], R> = (...args: A) => Promise<R>;
export declare function asyncMemoize<T, A extends any[], B>(cache: TypeCache, func: Func<A, B>, opts: TransformOptions<T, A, B>): Func<A, T>;
export declare function asyncMemoize<T, A extends any[]>(cache: TypeCache, func: Func<A, T>, opts?: Partial<BaseOptions<T, A>>): Func<A, T>;
interface BaseOptions<T, A extends any[]> {
    namespace: string;
    hash(...args: A): string;
    shouldStore(res: T): boolean;
}
interface TransformOptions<T, A extends any[], B> extends Partial<BaseOptions<B, A>> {
    transform(res: B): T;
}
export declare type MemoizeOptions<T, A extends any[]> = Partial<BaseOptions<T, A> & TransformOptions<T, A, any>>;
export {};