/**
 * Original work Copyright (c) 2020 Madfish Solutions
 * Modified work Copyright (c) 2022 Signum Network
 */
import { ExtensionAdapter } from './extensionAdapter';
import { ExtensionNotification, ExtensionPermission, ExtensionRequestArgs, ExtensionResponse, ExtensionSentEncryptedMessage, ExtensionSigned } from './messaging';
import { ExtensionListener } from './extensionListener';
import { RequestPermissionArgs, RequestSignArgs } from './args';
import { RequestSendEncryptedMessageArgs } from './args/requestSendEncryptedMessageArgs';
/**
 * Extension Adapter for Browser based wallet access, to use with {@link GenericExtensionWallet}
 *
 * This adapter is automatically chosen in browser environments - Usually, you won't use this adapter directly.
 */
export declare class BrowserExtensionAdapter implements ExtensionAdapter {
    private static send;
    private static assertResponse;
    /**
     * Asserts that a compatible extension wallet is available
     * @throws Exception if no wallet was found
     */
    assertWalletAvailable(): Promise<void>;
    /**
     * Informs about extension wallet events, like network/node changes, permission and/or account removals
     * @param callback The callback object with the event handler
     * @return The listener object, that can/should be used to unsubscribe if not needed anymore
     */
    onNotification(callback: (message: ExtensionNotification) => void): ExtensionListener;
    /**
     * Gets the current permission
     * @return The extensions permission object
     */
    getCurrentPermission(): Promise<ExtensionPermission>;
    /**
     * Generic request method, to request various operations
     * @param payload The payload object for the respective operation
     * @return The response from the wallet in case of success
     * @throws An error object in case of failures, see also {@link ExtensionWalletError}
     */
    request(payload: ExtensionRequestArgs): Promise<ExtensionResponse>;
    /**
     * Requests the permission of a compatible wallet.
     * A permission is based on _one_ network, e.g. Signum, Signum-TESTNET, etc. and the url of the requesting application.
     * The wallet should have selected a node of the required network, otherwise permission request fails with {@link InvalidNetworkError}
     * @param args The argument object
     */
    requestPermission(args: RequestPermissionArgs): Promise<ExtensionPermission>;
    requestSign(args: RequestSignArgs): Promise<ExtensionSigned>;
    requestSendEncryptedMessage(args: RequestSendEncryptedMessageArgs): Promise<ExtensionSentEncryptedMessage>;
}