/**
 * Valid locations for setting wallpaper
 */
export type Location = "home" | "lock" | "both";
/**
 * Error class for wallpaper-specific errors
 */
export declare class WallpaperError extends Error {
    originalError?: unknown;
    constructor(message: string, originalError?: unknown);
}
/**
 * Sets wallpaper from a given URL for specified screen location
 * @param url - The URL of the image to set as wallpaper
 * @param location - Where to set the wallpaper (`home`, `lock`, or `both`)
 * gives success message if wallpaper set successfully
 * @throws {WallpaperError} If the URL is invalid or setting wallpaper fails
 */
export declare const setWallpaperFromUrl: ({ url, location, }: {
    url: string;
    location: Location;
}) => Promise<string>;
/**
 * Type guard to check if an error is a WallpaperError
 */
export declare const isWallpaperError: (error: unknown) => error is WallpaperError;
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