/**
 * Custom error classes for repository operations
 */
/**
 * Base repository error class
 */
export declare class RepositoryError extends Error {
    readonly operation: string;
    readonly context?: Record<string, any>;
    constructor(message: string, operation: string, context?: Record<string, any>);
}
/**
 * Error thrown when a document is not found
 */
export declare class DocumentNotFoundError extends RepositoryError {
    constructor(resource: string, identifier: string, context?: Record<string, any>);
}
/**
 * Error thrown when validation fails
 */
export declare class ValidationError extends RepositoryError {
    constructor(message: string, field?: string, context?: Record<string, any>);
}