/**
 * Error codes for categorizing different types of errors in the release tool.
 */
export type VrtErrorCode = 'VALIDATION_ERROR' | 'MARKDOWN_ERROR' | 'GIT_ERROR' | 'RELEASE_ERROR' | 'NOT_IMPLEMENTED';
/**
 * Custom error class for the VersaTiles Release Tool.
 * Provides consistent error handling with categorization via error codes.
 */
export declare class VrtError extends Error {
    readonly code: VrtErrorCode;
    constructor(message: string, code?: VrtErrorCode);
}
/**
 * Helper function to create a validation error.
 */
export declare function validationError(message: string): VrtError;
/**
 * Helper function to create a markdown processing error.
 */
export declare function markdownError(message: string): VrtError;
/**
 * Helper function to create a git operation error.
 */
export declare function gitError(message: string): VrtError;
/**
 * Helper function to create a release process error.
 */
export declare function releaseError(message: string): VrtError;
/**
 * Helper function to create a not implemented error.
 */
export declare function notImplementedError(feature: string): VrtError;