import { ObservableValue } from '../observable-value';
import { LeveledLogEntry } from '.';
/**
 * A context service to get/set the active notification message
 */
export declare class NotificationService {
    activeMessages: ObservableValue<LeveledLogEntry<any>[]>;
    add(newMessage: LeveledLogEntry<any>): void;
    dismiss(oldItem: LeveledLogEntry<any>): void;
}
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