import { Authenticator, ButtonStyle, Chain, UALError, User } from "universal-authenticator-library";
import { JsonRpc } from "eosjs";
import { APIClient } from "@greymass/eosio";
export interface UALAnchorOptions {
    appName: string;
    client?: APIClient;
    rpc?: JsonRpc;
    service?: string;
    disableGreymassFuel?: boolean;
    requestStatus?: boolean;
    fuelReferrer?: string;
    verifyProofs?: boolean;
}
export declare class Anchor extends Authenticator {
    rpc: JsonRpc;
    client: APIClient;
    private users;
    private appName;
    private link?;
    private service;
    private chainId;
    private disableGreymassFuel;
    private requestStatus;
    private fuelReferrer;
    private verifyProofs;
    /**
     * Anchor Constructor.
     *
     * @param chains
     * @param options { appName } appName is a required option to use Scatter
     */
    constructor(chains: Chain[], options?: UALAnchorOptions);
    /**
     * Called after `shouldRender` and should be used to handle any async actions required to initialize the authenticator
     */
    init(): Promise<void>;
    /**
     * Resets the authenticator to its initial, default state then calls `init` method
     */
    reset(): void;
    /**
     * Returns true if the authenticator has errored while initializing.
     */
    isErrored(): boolean;
    /**
     * Returns a URL where the user can download and install the underlying authenticator
     * if it is not found by the UAL Authenticator.
     */
    getOnboardingLink(): string;
    /**
     * Returns error (if available) if the authenticator has errored while initializing.
     */
    getError(): UALError | null;
    /**
     * Returns true if the authenticator is loading while initializing its internal state.
     */
    isLoading(): boolean;
    getName(): string;
    /**
     * Returns the style of the Button that will be rendered.
     */
    getStyle(): ButtonStyle;
    /**
     * Returns whether or not the button should render based on the operating environment and other factors.
     * ie. If your Authenticator App does not support mobile, it returns false when running in a mobile browser.
     */
    shouldRender(): boolean;
    /**
     * Returns whether or not the dapp should attempt to auto login with the Authenticator app.
     * Auto login will only occur when there is only one Authenticator that returns shouldRender() true and
     * shouldAutoLogin() true.
     */
    shouldAutoLogin(): boolean;
    /**
     * Returns whether or not the button should show an account name input field.
     * This is for Authenticators that do not have a concept of account names.
     */
    shouldRequestAccountName(): Promise<boolean>;
    /**
     * Login using the Authenticator App. This can return one or more users depending on multiple chain support.
     *
     * @param accountName  The account name of the user for Authenticators that do not store accounts (optional)
     */
    login(): Promise<User[]>;
    /**
     * Logs the user out of the dapp. This will be strongly dependent on each Authenticator app's patterns.
     */
    logout(): Promise<void>;
    /**
     * Returns true if user confirmation is required for `getKeys`
     */
    requiresGetKeyConfirmation(): boolean;
}