export declare function loadInputHistory(): Promise<InputHistory>;
export declare class InputHistory {
    private readonly history;
    constructor(history: string[]);
    getCurrentHistory(): string[];
    appendToInputHistory(input: string): Promise<void>;
    private truncateOldEntries;
}
export declare const _exportedForTest: {
    MAX_HISTORY_ITEMS: number;
    MAX_HISTORY_TRUNCATION_BATCH: number;
};