import type { Hex } from 'viem';
import type { SignAuthorizationReturnType } from 'viem/accounts';
import type { EvmGaslessChainDeps } from '../types';
type Activate7702DelegationParams = {
    /** Pre-signed EIP-7702 authorization. If omitted, one will be signed automatically. */
    authorization?: SignAuthorizationReturnType;
};
/**
 * Activates EIP-7702 delegation for the wallet by sending a sponsored
 * transaction whose only payload is the 7702 authorization itself.
 *
 * After activation the delegation is persisted on-chain and subsequent
 * sponsored transactions can omit the authorization.
 */
export declare const activate7702Delegation: ({ authorization }: Activate7702DelegationParams, deps: EvmGaslessChainDeps) => Promise<{
    transactionHash: Hex;
}>;
export {};