/**
 * S-57 update mechanism: applies .001, .002, etc. incremental updates to a base dataset.
 *
 * S-57 update records contain RUIN (Record Update INstruction):
 *   1 = Insert, 2 = Delete, 3 = Modify
 *
 * Feature/spatial records are matched by RCID (and RCNM for spatial).
 * Sub-record pointer updates use control fields (FSPC, VRPC, SGCC).
 */
import type { S57Dataset } from './types.js';
/**
 * Apply an update file (.001, .002, etc.) to a base S-57 dataset.
 * Mutates the dataset in place and returns it.
 */
export declare function applyUpdate(dataset: S57Dataset, updateBuffer: ArrayBuffer): S57Dataset;
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