/**
 * Error utilities for Naver Map MCP Server
 * Centralized error handling and user-friendly messages
 */
/**
 * Base error class for Naver Map API errors
 */
export declare class NaverMapError extends Error {
    statusCode?: number | undefined;
    details?: string | undefined;
    constructor(message: string, statusCode?: number | undefined, details?: string | undefined);
    /**
     * Returns a user-friendly error message based on status code
     */
    toUserMessage(): string;
}
/**
 * Error class for billing API errors
 */
export declare class BillingApiError extends Error {
    statusCode?: number | undefined;
    details?: string | undefined;
    constructor(message: string, statusCode?: number | undefined, details?: string | undefined);
    toUserMessage(): string;
}
/**
 * Error class for configuration errors
 */
export declare class ConfigurationError extends Error {
    constructor(message: string);
}
/**
 * Error class for input validation errors
 */
export declare class ValidationError extends Error {
    field?: string | undefined;
    constructor(message: string, field?: string | undefined);
}
/**
 * Handle fetch response errors and convert to NaverMapError
 */
export declare function handleFetchError(response: Response): Promise<never>;
/**
 * Format any error to a user-friendly string
 */
export declare function formatErrorResponse(error: unknown): string;
/**
 * Create MCP tool error response
 */
export declare function createErrorResponse(error: unknown): {
    content: {
        type: "text";
        text: string;
    }[];
    isError: boolean;
};
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