import { IdentityClient } from '../IdentityClient';
import { GetTokenParams, TokenCredential, TokenResponse } from './TokenCredential';

/**
 * 获取微应用后台免登的授权凭证
 */
export declare abstract class BaseTokenCredential<Params = GetTokenParams> implements TokenCredential<Params> {
    protected client: IdentityClient;
    getClient(): IdentityClient<TokenCredential<void | {}>>;
    setClient(client: IdentityClient): void;
    getTokenValue(params: Params): Promise<string>;
    abstract getToken(params: Params): Promise<TokenResponse>;
}
export declare abstract class TokenSessionCredential<Params = GetTokenParams> extends BaseTokenCredential<Params> {
    protected token?: TokenResponse;
    protected expiredAt?: number;
    protected promise?: Promise<TokenResponse>;
    getToken(params: Params): Promise<TokenResponse>;
    protected abstract request(params: Params): Promise<TokenResponse>;
}