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* @exception AIError::ERR_FLAT_LAND_REQUIRED
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* @exception AIError::ERR_LOCAL_AUTHORITY_REFUSES
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* @exception AIStation::ERR_STATION_TOO_LARGE
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* @return Whether the airport has been/can be build or not.
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static bool BuildAirport(TileIndex tile, AirportType type, StationID station_id);