import { ClientAppContribution, SlotRendererContribution, SlotRendererRegistry } from '@opensumi/ide-core-browser';
import { FileServiceClient } from '@opensumi/ide-file-service/lib/browser/file-service-client';
export declare class DesignCoreContribution implements ClientAppContribution, SlotRendererContribution {
    protected readonly fileSystem: FileServiceClient;
    private readonly designThemeFileSystemProvider;
    private layoutViewSize;
    initialize(): void;
    registerRenderer(registry: SlotRendererRegistry): void;
}
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