import { BaseError } from './index';
/**
 * Format an error object into a human-readable string with detailed context
 *
 * @param error - The error to format
 * @param includeStack - Whether to include the stack trace
 * @returns A formatted error string
 */
export declare function formatError(error: Error, includeStack?: boolean): string;
/**
 * Log an error to the console with detailed information
 *
 * @param error - The error to log
 * @param prefix - An optional prefix to add to the log
 */
export declare function logError(error: Error, prefix?: string): void;
/**
 * Create a custom error instance based on the error type and context
 *
 * @param type - The type of error to create
 * @param message - The error message
 * @param context - Additional context for the error
 * @param cause - The original error that caused this one
 * @returns A custom error instance
 */
export declare function createError(type: 'document' | 'readability' | 'turndown' | 'markdown', message: string, context?: Record<string, unknown>, cause?: Error): BaseError;
/**
 * Assert that a condition is true, or throw an error
 *
 * @param condition - The condition to check
 * @param errorType - The type of error to throw
 * @param message - The error message
 * @param context - Additional context for the error
 */
export declare function assert(condition: boolean, errorType: 'document' | 'readability' | 'turndown' | 'markdown', message: string, context?: Record<string, unknown>): void;