/**
 * S-57 parser: converts ISO 8211 records into S-57 domain objects.
 */
import type { S57Dataset } from './types.js';
/**
 * Parse an S-57 .000 file from an ArrayBuffer.
 * Returns a structured S57Dataset with features and spatial records.
 */
export declare function parseS57(buffer: ArrayBuffer): S57Dataset;
/** Compound map key for spatial records: avoids RCID collisions between different RCNM types. */
export declare function spatialKey(rcnm: number, rcid: number): number;
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