/** Header carrying the shared secret on a token-refresh push. Matches the server's listener. */
export declare const REFRESH_SECRET_HEADER = "x-refresh-secret";
/** Pushes a fresh access token to the running server's loopback listener. */
export type PushToken = (params: {
    port: number;
    secret: string;
    accessToken: string;
}) => Promise<void>;
/** POST the fresh token to the server's loopback refresh listener. */
export default function pushToken({ port, secret, accessToken, }: Parameters<PushToken>[0]): Promise<void>;