declare function requestAuthorization(selectedScopes?: string[], idpDomain?: string, idpClientId?: string, idpAudience?: string): Promise<void>;
export declare function refreshAccessToken(idpDomain?: string, idpClientId?: string): Promise<string | null>;
/**
 * Revokes the refresh token stored in the keychain.
 * Returns true if successful or if no refresh token exists.
 */
export declare function revokeRefreshToken(idpDomain?: string, idpClientId?: string): Promise<boolean>;
/**
 * Determines if the current access token is expired or will expire soon.
 */
export declare function isTokenExpired(bufferSeconds?: number): Promise<boolean>;
/**
 * Retrieves a valid access token for API operations.
 */
export declare function getValidAccessToken(): Promise<string | null>;
export { requestAuthorization };