export type ErrorCode = 'USAGE_ERROR' | 'VALIDATION_ERROR' | 'NOT_FOUND' | 'CONFLICT' | 'DATABASE_ERROR' | 'BACKPRESSURE' | 'SERVICE_UNAVAILABLE' | 'SECURITY_REJECTION' | 'AUTHENTICATION_ERROR' | 'INTEGRITY_ERROR' | 'PARTIAL_FAILURE' | 'NOT_IMPLEMENTED';
export declare class KiokukoError extends Error {
    readonly code: ErrorCode;
    readonly details: Record<string, unknown>;
    readonly exitCode: number;
    constructor(code: ErrorCode, message: string, details?: Record<string, unknown>);
}
export declare const STORED_MEMORY_INTEGRITY_MESSAGE: string;
export declare function storedMemoryIntegrityError(): KiokukoError;
export declare const DATABASE_BACKUP_RECOVERY_MESSAGE: string;
export declare function databaseBackupIntegrityError(cause?: unknown): KiokukoError;
export declare function exitCodeFor(error: unknown): number;
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