export declare const flashCertificate: ({ at, secTag, clientCert, caCert, secondaryCaCert, }: {
    at: (cmd: string) => Promise<string[]>;
    secTag: number;
    clientCert: string;
    caCert: string;
    secondaryCaCert?: {
        secTag: number;
        caCert: string;
    } | undefined;
}) => Promise<void>;