/**
 * Known signed extensions that require external input.
 *
 * Note: Extensions that don't require external input are automatically handled by FallbackSignedExtension:
 * - CheckNonZeroSender
 * - CheckWeight
 * - PrevalidateAttests
 * - StorageWeightReclaim
 *
 * These extensions have empty struct or tuple types and don't need explicit implementation.
 */
import { ISignedExtension } from '../SignedExtension.js';
export type AnySignedExtension = new (...args: any[]) => ISignedExtension;
export declare const knownSignedExtensions: Record<string, AnySignedExtension>;