import { FdpStorage } from './model/fdp-storage.model';
import { Signer } from './signer';
import { Wallet } from './wallet';
/**
 * Interface of the Blossom browser extension
 * This class can be used inside of a web page or service worker script
 */
export declare class Blossom {
    private messages;
    /**
     * Proxy object for the FdpStorage type. Simulates access to FdpStorage functions by
     * forwarding requests to the Blossom extension.
     *
     * For more information about available functions check:
     * https://github.com/fairDataSociety/fdp-storage#usage
     */
    readonly fdpStorage: FdpStorage;
    /**
     * Signer object
     */
    readonly signer: Signer;
    /**
     * Wallet object. This object contains methods for interaction with blockchain.
     */
    readonly wallet: Wallet;
    /**
     * dApp ENS name. If dApp is loaded from an invalid URL, the value will be null.
     */
    readonly dappId: string | null;
    /**
     *
     * @param extensionId The Blossom extension ID
     */
    constructor(extensionId?: string);
    /**
     * Test function, to check communication with the extension
     * @param data Any data
     * @returns The same data
     */
    echo<Data>(data: Data): Promise<Data>;
    closeConnection(): void;
}