export interface Command {
    do(): void;
    undo(): void;
}
export declare class CommandHistory {
    private readonly maxSize;
    private readonly onChange?;
    private undoStack;
    private redoStack;
    constructor(maxSize?: number, onChange?: () => void);
    get canUndo(): boolean;
    get canRedo(): boolean;
    execute(command: Command): void;
    undo(): boolean;
    redo(): boolean;
    clear(): void;
}