import { ComparisonOptions } from '../types/runtime-lib.js';
export declare function anyEquals(a: any, b: any, options?: ComparisonOptions): boolean;
export declare function anyContains(haystack: any, needle: any, options?: ComparisonOptions): boolean;
export declare function strEquals(a: string, b: string, options?: ComparisonOptions): boolean;
export declare function strContains(a: string, b: string, options?: ComparisonOptions): boolean;
export declare function weakString(str: string, options?: ComparisonOptions): string;
export declare function isEmpty(value: any): boolean;