/**
 * Utility functions for browser-use
 */
/**
 * Check if a domain pattern has complex wildcards that could match too many domains
 */
export declare function isUnsafePattern(pattern: string): boolean;
/**
 * Check if a URL is a new tab page
 */
export declare function isNewTabPage(url: string): boolean;
/**
 * Check if a URL matches a domain pattern - SECURITY CRITICAL
 */
export declare function matchUrlWithDomainPattern(url: string, domainPattern: string, logWarnings?: boolean): boolean;
/**
 * Deep merge two objects
 */
export declare function mergeDicts(a: Record<string, any>, b: Record<string, any>, path?: string[]): Record<string, any>;
/**
 * Get the browser-use package version
 */
export declare function getBrowserUseVersion(): string;
/**
 * Pretty-print a path, shorten home dir to ~ and cwd to .
 */
export declare function logPrettyPath(path: string | null | undefined): string;
/**
 * Truncate/pretty-print a URL with a maximum length, removing the protocol and www. prefix
 */
export declare function logPrettyUrl(s: string, maxLen?: number): string;
/**
 * Check if all required environment variables are set
 */
export declare function checkEnvVariables(keys: string[], anyOrAll?: 'any' | 'all'): boolean;
/**
 * Sleep for the specified number of milliseconds
 */
export declare function sleep(ms: number): Promise<void>;
/**
 * Time execution decorator for async functions
 */
export declare function timeExecution(additionalText?: string): <T extends (...args: any[]) => Promise<any>>(target: any, propertyName: string, descriptor: TypedPropertyDescriptor<T>) => TypedPropertyDescriptor<T>;
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