/**
 * @copyright Sister Software
 * @license AGPL-3.0
 * @author Teffen Ellis, et al.
 *
 *   Fetch the OurAirports CSV dumps — the VENUE side of the sub-venue corpus arc (#35).
 *
 *   Source : https://davidmegginson.github.io/ourairports-data/ (the project's own GitHub Pages
 *            mirror of the nightly export; `ourairports.com/data/` redirects here).
 *   License: PUBLIC DOMAIN. OurAirports places its data in the public domain and asks only for a
 *            courtesy credit — no attribution obligation rides on a derived shard, which makes this
 *            the one transport source in the arc with no licensing question at all. Tier A.
 *
 *   ## What it is good for, and what it is not
 *
 *   `airports.csv` is every airport on earth with ICAO/IATA codes, coordinates, `municipality`, and
 *   `iso_country` — 12.7 MB, ~83,000 rows as of 2026-08-04. That is the CONTAINING VENUE for a
 *   `<sub-venue>, <venue>, <street>, <locality>, <postcode>` corpus line, and it is better at that job
 *   than OSM: every row is named, the name is canonical, and `municipality` gives the locality without
 *   a spatial join.
 *
 *   It carries NO interior structure. There is no terminal, concourse, gate or pier table — the
 *   corpus task says as much ("Good for the venue side of each pair, weaker on interior structure")
 *   and a row-level read confirms it. Pair it with the OSM `aeroway` extractor
 *   (`@mailwoman/osm/sdk`'s `extractOSMSubVenues`), which is where the sub-venue half comes from.
 *
 *   ## Why `downloadToFile` and not `APIClient`
 *
 *   `AGENTS.md` routes HTTP through `APIClient`, and that rule is about API REQUESTS — small bodies,
 *   repeated calls, rate-limited hosts. This is four static file transfers against a GitHub Pages CDN
 *   with no rate limit and nothing to pace, run once per refresh. It uses the same `downloadToFile`
 *   every other module in this `fetch/` family uses, which is where the retry and timeout live.
 *   The Wikidata sibling (`wikidata-subvenue.ts`) IS an API client and is built on `APIClient`
 *   accordingly; the split between the two is the one `AGENTS.md` draws.
 *
 *   Invoke via `mailwoman corpus fetch ourairports --out-root <path>`.
 */
import type { BaseFetchOptions, FetchSummary } from "./download.ts";
export type FetchOurAirportsOptions = BaseFetchOptions;
/**
 * Download the OurAirports CSVs into `<outRoot>/ourairports/`, with a sibling `MANIFEST.json` carrying each file's
 * origin URL, sha256, byte count and upstream `Last-Modified`.
 */
export declare function fetchOurAirports(options: FetchOurAirportsOptions, report?: (line: string) => void): Promise<FetchSummary>;
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