import { RpcBridge } from './RpcBridge';
import { Provider } from 'web3/providers';
import { Property } from 'reactive-properties';
export declare abstract class IframeInitializerBase {
    protected readonly bridge: RpcBridge;
    constructor();
    protected abstract getProvider(): Provider;
    protected abstract getIsUiVisible(): Property<boolean>;
    protected abstract getHasNotifications(): Property<boolean>;
    start(): Promise<void>;
    private setNotificationIndicator;
    private setIframeVisibility;
    private sendReadySignal;
}
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