import type { TargetPanelEntry } from './types.js';
export type TargetRowConnector = 'root' | 'single' | 'middle' | 'last';
export interface TargetRow {
    target: TargetPanelEntry;
    depth: number;
    connector: TargetRowConnector;
}
/**
 * Flatten targets into a stable, grouped tree. Parent rows are real targets; children
 * reference a parent via `group`. Ordering honors the first time we see a group name.
 */
export declare const buildTargetRows: (targets: TargetPanelEntry[]) => TargetRow[];
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