import { fhirclient } from "../types";
export default class ServerStorage {
    request: fhirclient.RequestWithSession;
    /**
     * @param request The HTTP request that is expected to have a
     * "session" object property.
     */
    constructor(request: fhirclient.RequestWithSession);
    /**
     * Gets the value at `key`. Returns a promise that will be resolved
     * with that value (or undefined for missing keys).
     */
    get(key: string): Promise<any>;
    /**
     * Sets the `value` on `key` and returns a promise that will be resolved
     * with the value that was set.
     */
    set(key: string, value: any): Promise<any>;
    /**
     * Deletes the value at `key`. Returns a promise that will be resolved
     * with true if the key was deleted or with false if it was not (eg. if
     * did not exist).
     */
    unset(key: string): Promise<boolean>;
}