import BaseComponent from '../BaseComponent';
import { IMessageBarStyles } from './MessageBar.types';
import { CreateElement } from 'vue';
export declare class MessageBarBase extends BaseComponent {
    messageBarType: number;
    isMultiline: boolean;
    actions: boolean;
    truncated: boolean;
    expandSingleLine: boolean;
    state: {
        expandSingleLine: boolean;
    };
    get classNames(): import("@uifabric/merge-styles").IProcessedStyleSet<IMessageBarStyles>;
    private onExpandSingleLine;
    private onClick;
    render(h: CreateElement): import("vue").VNode;
}
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