/**
 * Base error type for IC-related and stealth client operations.
 * @remarks
 * SDK consumers can `instanceof StealthError` to distinguish SDK failures from other thrown errors.
 */
export declare class StealthError extends Error {
    constructor(message: string);
}
/**
 * Error thrown when an announcement should be ignored during scanning/decryption.
 * @remarks
 * This is used for expected failures such as:
 * - view key mismatch
 * - invalid ciphertext for this recipient
 * - AES-GCM authentication failure
 *
 * Scanners typically swallow this error and continue with other announcements.
 */
export declare class AnnouncementIgnoredError extends StealthError {
    constructor(reason: string);
}
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