import { APIMethods, APIMethodParams } from '@gramio/types';

type MiddlewareContext = {
    [M in keyof APIMethods]: {
        method: M;
        params: APIMethodParams<M>;
        formData?: FormData;
    };
}[keyof APIMethods];
/**
 * Middleware that automatically detects file uploads in API params
 * and converts them to `FormData`, enabling `Blob`/`File` support for all media methods.
 *
 * @example
 * ```ts
 * import { Telegram } from "wrappergram";
 * import { filesMiddleware } from "@gramio/files/middleware";
 * import { MediaUpload } from "@gramio/files";
 *
 * const telegram = new Telegram("BOT_TOKEN", {
 *     middlewares: [filesMiddleware],
 * });
 *
 * await telegram.api.sendPhoto({
 *     chat_id: 123,
 *     photo: await MediaUpload.url("https://example.com/image.jpg"),
 * });
 * ```
 */
declare const filesMiddleware: (context: MiddlewareContext, next: () => Promise<unknown>) => Promise<unknown>;

export { filesMiddleware };