/**
 * Composable to track the current zoom level of a VisuallyJS UI in Vue. This returns the current zoom as a ref, and will discover the component from which to get the zoom automatically (a Surface, Paper or Diagram)
 *
 * ```vue
 * <script setup>
 * import { useZoom } from "@visuallyjs/browser-ui-vue"
 *
 * const zoom = useZoom()
 * </script>
 *
 * <template>
 *   <p>Current zoom: {{ zoom }}</p>
 * </template>
 * ```
 *
 * @group Hooks
 */
export declare function useZoom(): import("vue").Ref<number>;