import { UndoRedoRecord } from './types';
export interface IUndoRedoStep<T> {
    getRecord(): T | undefined;
    setRecord(record: T): void;
}
export declare class UndoRedoStep implements IUndoRedoStep<UndoRedoRecord> {
    private _undoRedoRecord?;
    constructor(record: UndoRedoRecord);
    getRecord(): UndoRedoRecord | undefined;
    setRecord(record: UndoRedoRecord): void;
}