import { ExtensionBase } from '../ExtensionBase.ts';
import { ComponentUI } from '../extensionMixin.ts';
import { ToolBase } from './ToolBase.ts';
export declare class MeasureExtension extends ExtensionBase {
    static getName: () => string;
    tools: Map<ToolBase, string>;
    sharedToolbar: ComponentUI;
    ui: ComponentUI;
    constructor(viewerName: string);
    commandChanged(oldCommandName: string): void;
    uiRender(container: HTMLElement): void;
    sharedToolbarRender(container: HTMLElement): void;
    added(): void;
    deleted(): void;
}