import { type AccessTokens, type TokenRefreshFunction } from "../http-api/index.ts";
import { type OAuth2 } from "./index.ts";
/**
 * Class responsible for refreshing OAuth2 access tokens
 */
export declare class TokenRefresher {
    private readonly auth;
    private readonly onRefresh;
    private inflightRefreshRequest?;
    constructor(auth: OAuth2, onRefresh: (tokens: AccessTokens) => Promise<void>);
    /**
     * Attempt token refresh using given refresh token
     * @param refreshToken - refresh token to use in request with token issuer
     * @returns tokens - Promise that resolves with new access and refresh tokens
     * @throws when token refresh fails
     */
    tokenRefreshFunction: TokenRefreshFunction;
    private shouldLogoutOnError;
    private getNewTokens;
}
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