import { type ClientMiddlewareFn } from "@aa-sdk/core";
import { type MultisigUserOperationContext } from "./types.js";
/**
 * A signer middleware to be used with Multisig Account Clients.
 * This middleware handles correctly aggregating signatures passed through
 * as context when sending UserOperations, proposing UserOperations, or adding signatures to a UserOperation.
 *
 * @param {Deferrable<UserOperationStruct<TEntryPointVersion>>} struct the user operation struct to be signed
 * @param {ClientMiddlewareArgs<TAccount, C, TContext, TEntryPointVersion>} args the parameters to be passed to the middleware
 * @param {UserOperationOverrides<TEntryPointVersion>} args.account the account to be used for signing
 * @param {MiddlewareClient} args.client the smart account client that will be used for RPC requests
 * @param {MultisigUserOperationContext} args.context the context object containing the signatures to be aggregated MultisigUserOperationContext
 * @returns {Promise<Deferrable<UserOperationStruct<TEntryPointVersion>>>} a Promise containing a UserOperation with an aggregated signature in the `signature` field
 */
export declare const multisigSignatureMiddleware: ClientMiddlewareFn<MultisigUserOperationContext>;