import { type Readable } from '@vielzeug/ripple';
/**
 * Produces a reactive string of class names from an object map.
 *
 * Each key is a class name. Its value may be:
 * - a static `boolean`
 * - a `Signal<boolean>`
 * - a getter `() => boolean`
 *
 * Returns a `Reactive<string>` that can be used directly in a template
 * class attribute:
 *
 * @example
 * ```ts
 * html`<div class="${classMap({ active: isActive, hidden: () => !isVisible.value })}"></div>`
 * ```
 */
export declare const classMap: (map: Record<string, (() => boolean) | Readable<boolean> | boolean>) => Readable<string>;
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