export declare class OTPError extends Error {
    readonly code: string;
    constructor(message: string, code: string);
}
export declare class OTPRateLimitExceededError extends OTPError {
    constructor(message?: string);
}
export declare class OTPExpiredError extends OTPError {
    constructor(message?: string);
}
export declare class OTPInvalidError extends OTPError {
    constructor(message?: string);
}
export declare class OTPMaxAttemptsExceededError extends OTPError {
    constructor(message?: string);
}
export declare class OTPResendCooldownError extends OTPError {
    constructor(message?: string);
}
export declare class OTPLockedError extends OTPError {
    constructor(message?: string);
}
export declare class VerificationSecretExpiredError extends OTPError {
    constructor(message?: string);
}
export declare class VerificationSecretInvalidError extends OTPError {
    constructor(message?: string);
}
export declare class VerificationSecretAlreadyUsedError extends OTPError {
    constructor(message?: string);
}