import type { LogFn } from '@aztec/foundation/log';
export type SetFundingAccountOptions = {
    remoteSigner?: string;
    password?: string;
    encryptedKeystoreDir?: string;
    json?: boolean;
};
/**
 * Sets the top-level funding account of an existing keystore, replacing any previous one. The
 * account may be a private key, or an address paired with a remote signer URL. With a password,
 * a plaintext key is encrypted to an ETH JSON V3 file and stored as a { path, password } reference.
 */
export declare function setFundingAccount(existing: string, fundingAccount: string, options: SetFundingAccountOptions, log: LogFn): Promise<void>;
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