/**
 * Weather data module.
 * Primary source: wttr.in (no API key required).
 * Fallback: Open-Meteo API (no API key required).
 */
import type { WeatherData } from './types.js';
export type WeatherProvider = 'wttr' | 'open-meteo';
/**
 * Fetch current weather and forecast for the given location.
 *
 * @param location - City name, coordinates, or any wttr.in-compatible query.
 * @param units    - `'metric'` (Celsius, km/h) or `'imperial'` (Fahrenheit, mph).
 * @param provider - `'wttr'` tries wttr.in first with open-meteo fallback;
 *                   `'open-meteo'` goes directly to Open-Meteo.
 */
export declare function fetchWeather(location: string, units?: 'metric' | 'imperial', provider?: WeatherProvider): Promise<WeatherData>;
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