import { IStorageService } from "@codingame/monaco-vscode-api/vscode/vs/platform/storage/common/storage.service";
import { IChatOutputPartStateCache } from "@codingame/monaco-vscode-api/vscode/vs/workbench/contrib/chat/browser/widget/chatContentParts/chatOutputPartStateCache.service";
export interface IOutputPartState {
    height: number;
    webviewState?: string;
}
export declare class ChatOutputPartStateCache implements IChatOutputPartStateCache {
    readonly _serviceBrand: undefined;
    private readonly _cache;
    constructor(storageService: IStorageService);
    get(key: string): IOutputPartState | undefined;
    set(key: string, state: IOutputPartState): void;
    private _serialize;
    private _deserialize;
}