export declare class NotionMCPError extends Error {
    message: string;
    code: string;
    suggestion?: string | undefined;
    details?: any;
    constructor(message: string, code: string, suggestion?: string | undefined, details?: any);
    toJSON(): {
        error: string;
        code: string;
        message: string;
        suggestion: string | undefined;
        details: any;
    };
}
/**
 * Enhance Notion API error with helpful context
 */
export declare function enhanceError(error: any): NotionMCPError;
/**
 * Find the closest matching string from a list of valid options.
 * Uses Levenshtein-like similarity (simple character overlap).
 */
export declare function findClosestMatch(input: string, validOptions: string[]): string | null;
/**
 * Create AI-readable error message
 */
export declare function aiReadableMessage(error: NotionMCPError): string;
/**
 * Suggest fixes based on error
 */
export declare function suggestFixes(error: NotionMCPError): string[];
/**
 * Wrap async function with error handling
 */
export declare function withErrorHandling<Args extends unknown[], Return>(fn: (...args: Args) => Promise<Return>): (...args: Args) => Promise<Return>;
/**
 * Retry with exponential backoff
 */
export declare function retryWithBackoff<T>(fn: () => Promise<T>, options?: {
    maxRetries?: number;
    initialDelay?: number;
    maxDelay?: number;
    backoffMultiplier?: number;
}): Promise<T>;
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