import { Credentials, AuthClientRequestOptions } from './models';
export declare abstract class AuthClient {
    abstract request: RequestFunction;
    abstract setCredentials(credentials?: Credentials): Promise<void>;
    abstract getAccessToken(): Promise<string>;
}
export type RequestFunction = <T>(url: string, options?: AuthClientRequestOptions) => Promise<T>;
export interface SimpleStorage {
    getItem: (key: string) => Promise<string | null>;
    removeItem: (key: string) => Promise<void>;
    setItem: (key: string, value: string) => Promise<void>;
    getItemSync: (key: string) => string | null;
    removeItemSync: (key: string) => void;
    setItemSync: (key: string, value: string) => void;
}