import { AxiosInstance } from 'axios';
import { UploadMetadata, StorageMetadata, SettableMetadata, ListOptions, ListResult } from './types';
import { UploadOptions } from '../types/index';
import { UploadTask } from './UploadTask';
import { IStorageReference } from './StorageReference';
export declare class Storage {
    private projectId;
    private client;
    emulatorUrl?: string;
    constructor(projectId: string, client: AxiosInstance);
    ref(path?: string): IStorageReference;
    refFromURL(url: string): IStorageReference;
    createUploadTask(path: string, file: Blob, metadata?: UploadMetadata): UploadTask;
    uploadFile(path: string, file: File | Blob, options?: UploadOptions): Promise<{
        url: string;
        path: string;
    }>;
    getDownloadURL(path: string): Promise<string>;
    deleteFile(path: string): Promise<{
        success: boolean;
        message?: string;
    }>;
    getMetadata(path: string): Promise<StorageMetadata>;
    updateMetadata(path: string, metadata: SettableMetadata): Promise<StorageMetadata>;
    list(path: string, options?: ListOptions): Promise<ListResult>;
}
export declare const getStorage: (app?: any) => Storage;
export declare const connectStorageEmulator: (storage: Storage, host: string, port: number) => void;