import { Plugin } from 'unified';
import { DastRoot } from '../packages/parser/dist';
/**
 * Upgrade the `<collect>` element to the new syntax.
 * ```xml
 *    <collect componentTypes="point" name="points" source="panel1" assignNames="q1 q2 q3 q4 q5" />
 *    $q3
 * ```
 * becomes
 * ```xml
 *   <collect componentType="point" name="points" from="$panel1" />
 *   $points[3]
 * ```
 */
export declare const upgradeCollectElement: Plugin<[], DastRoot, DastRoot>;
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