import { AuthenticationClient, Scopes, TwoLeggedToken } from "@aps_sdk/authentication";
export interface IAuthenticationProvider {
    getToken(scopes: Scopes[]): Promise<string>;
}
export declare class BasicAuthenticationProvider implements IAuthenticationProvider {
    protected accessToken: string;
    constructor(accessToken: string);
    getToken(scopes: Scopes[]): Promise<string>;
}
export declare class TwoLeggedAuthenticationProvider implements IAuthenticationProvider {
    protected clientId: string;
    protected clientSecret: string;
    protected authenticationClient: AuthenticationClient;
    protected lastCredentials: TwoLeggedToken | null;
    constructor(clientId: string, clientSecret: string);
    getToken(scopes: Scopes[]): Promise<string>;
}
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