import { File } from '@nativescript/core';
import { ListResult, UploadMetadata } from '../../storage/storage';
export declare module storage {
	interface UploadTaskSnapshot {
		downloadURL: string | null;
		totalBytes: number;
	}
	interface Metadata {
		string: string;
	}
	class Reference {
		private path;
		parent: Reference | null;
		root: Reference;
		fullPath: string;
		constructor(path?: string);
		child(path: string): storage.Reference;
		delete(): Promise<void>;
		getDownloadURL(): Promise<string>;
		getMetadata(): Promise<string>;
		listAll(): Promise<ListResult>;
		put(data: File | string, metadata?: UploadMetadata): Promise<UploadTaskSnapshot>;
		download(downloadToPath: string): Promise<any>;
	}
	class Storage {
		ref(): Reference;
	}
}