/**
 * Defines the data that should be persisted for each session. This interface
 * is exposed as part of our public API.
 */
export interface ISessionInfo {
    /**
     * 'true' if the session is currently logged into an associated identity
     * provider.
     */
    isLoggedIn: boolean;
    /**
     * The WebID if the user is logged into the session, and undefined if not.
     */
    webId?: string;
    /**
     * The WebID of the app, or a "Public app" WebID if the app does not provide its own.
     * undefined until the session is logged in and the app WebID has been verified.
     */
    clientAppId?: string;
    /**
     * A unique identifier for the session.
     */
    sessionId: string;
    /**
     * UNIX timestamp (number of milliseconds since Jan 1st 1970) representing the
     * time until which this session is valid.
     */
    expirationDate?: number;
}
/**
 * Captures information about sessions that is persisted in storage, but that
 * should not be exposed as part of our public API, and is only used for
 * internal purposes. It is complementary to ISessionInfo when retrieving all
 * information about a stored session, both public and internal.
 */
export interface ISessionInternalInfo {
    /**
     * The refresh token associated with the session (if any).
     */
    refreshToken?: string;
    /**
     * The OIDC issuer that issued the tokens authenticating the session.
     */
    issuer?: string;
    /**
     * The redirect URL registered when initially logging the session in.
     */
    redirectUrl?: string;
    /**
     * For public clients, and Solid Identity Providers that do not support Client
     * WebIDs, the client secret is still required at the token endpoint.
     */
    clientAppSecret?: string;
    /**
     * The token type used by the session
     */
    tokenType?: "DPoP" | "Bearer";
    /**
     * Whether the session is refreshed in the background or not.
     * @since 2.2.0
     */
    keepAlive?: boolean;
    /**
     * Private part of the DPoP key.
     * @since 2.4.0
     */
    privateKey?: string;
    /**
     * Public part of the DPoP key.
     * @since 2.4.0
     */
    publicKey?: string;
    /**
     * The expiration timestamp (in seconds since epoch) of the dynamically
     * registered client. 0 means the client never expires. Only applicable
     * to confidential clients (those with a clientAppSecret).
     */
    clientExpiresAt?: number;
}
export declare function isSupportedTokenType(token: string | "DPoP" | "Bearer"): token is "DPoP" | "Bearer";