import { TokenGenerator, Token } from '../../api';
/**
 * Simple implementation that just delegates to a function call.
 *
 * The aim is to provide a bridge between user needs and avoiding internal code complexity.
 *
 * The user has the possibility to use a function as TokenGenerator whereas the code always
 * only handles one concept.
 *
 * @see UuidGenerator
 * @see Uuid
 */
export declare class FuncCallTokenGenerator implements TokenGenerator {
    private func;
    /**
     * Initialize with the function used to delegate Uuid generation.
     *
     * @param {Function} func the function used to generate a Uuid.
     * The function takes no parameter and returns a Uuid instance.
     */
    constructor(func: () => Promise<Token>);
    generate(): Promise<Token>;
}