import { ResolvedPaintItem } from '../../../../contracts/src/index.js';
import { SdtBoundaryOptions } from './container.js';
/**
 * The container-label keys a `computeSdtBoundaries` walk over `resolvedItems`
 * WOULD add to `sdtLabelsRendered`, without mutating it. This is the pure
 * "which labels does this page display" function the persistent-page reuse path
 * compares against recorded per-page label state: label placement is
 * cross-page prefix state that resolve stamps do not cover, so an untouched
 * reuse is only safe when the recorded labels equal this expectation.
 *
 * Implemented BY running `computeSdtBoundaries` on a scratch copy of the
 * prefix set (never a hand-maintained mirror), so the two can not drift.
 * Pages without container items take the allocation-free fast path.
 */
export declare const computeExpectedSdtLabelKeys: (resolvedItems: readonly ResolvedPaintItem[], sdtLabelsRendered: ReadonlySet<string>) => ReadonlySet<string>;
export declare const computeSdtBoundaries: (resolvedItems: readonly ResolvedPaintItem[], sdtLabelsRendered: Set<string>) => Map<number, SdtBoundaryOptions>;