import { type Rect } from '../layout';
import type { DecorationPoint, ReferenceAnnotationCandidate, ReferenceAnnotationDecorationItem } from './types';
type ReferenceAnnotationPlacementConfig = {
    item: ReferenceAnnotationDecorationItem;
    obstacles?: readonly DecorationPoint[];
    exclusion_rects?: readonly Rect[];
};
type ReferenceAnnotationPlacementResult = {
    candidate: ReferenceAnnotationCandidate;
    score: number;
};
export declare function place_reference_annotation({ item, obstacles, exclusion_rects, }: ReferenceAnnotationPlacementConfig): ReferenceAnnotationPlacementResult;
export {};