import type { OAuthMetadataFetch, StoredOAuthTokens } from "./types.js";
interface OAuthErrorShape {
    error: string;
    error_description?: string;
    error_uri?: string;
}
export declare class OAuthError extends Error {
    readonly error: string;
    readonly errorDescription: string | undefined;
    readonly errorUri: string | undefined;
    readonly error_description: string | undefined;
    readonly error_uri: string | undefined;
    readonly status: number;
    readonly retryable: boolean;
    readonly terminal: boolean;
    constructor(shape: OAuthErrorShape, status: number);
}
export declare function isRetryableOAuthError(error: unknown): error is OAuthError;
export declare function exchangeAuthorizationCode(input: {
    tokenEndpoint: string;
    clientId: string;
    clientSecret?: string;
    code: string;
    codeVerifier: string;
    redirectUri: string;
    resource: string;
    fetch: OAuthMetadataFetch;
    now: () => number;
}): Promise<StoredOAuthTokens>;
export declare function refreshAccessToken(input: {
    tokenEndpoint: string;
    clientId: string;
    clientSecret?: string;
    refreshToken: string;
    resource: string;
    fetch: OAuthMetadataFetch;
    now: () => number;
}): Promise<StoredOAuthTokens>;
export declare function readOAuthJsonObjectResponse(response: Response): Promise<Record<string, unknown>>;
export {};