import type { Composite } from './types.js';
import type { PdfElement } from '../../models/PdfElement.js';
/**
 * Convert raw text elements to the composite working shape.
 */
export declare function convertToComposites(elements: PdfElement[]): Composite[];
/**
 * Merge overlapping/adjacent composites into clusters, constrained to detected
 * columns. Every composite lands in exactly one cluster.
 */
export declare function mergeOverlappingComposites(composites: Composite[]): Composite[];
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