/// <summary>
    /// 异步获取创建者。
    /// </summary>
    /// <typeparam name="TUpdatedBy">指定的创建者类型(提供对整数、字符串、GUID 等类型的支持)。</typeparam>
    /// <param name="updator">给定的 <see cref="IUpdator{TUpdatedBy}"/>。</param>
    /// <param name="newUpdatedByFactory">给定的新创建者工厂方法。</param>
    /// <param name="cancellationToken">给定的 <see cref="CancellationToken"/>(可选)。</param>
    /// <returns>返回一个包含 <typeparamref name="TUpdatedBy"/>(兼容标识或字符串)的异步操作。</returns>
    public static async ValueTask <TUpdatedBy?> SetUpdatedByAsync <TUpdatedBy>(this IUpdator <TUpdatedBy> updator,
                                                                               Func <TUpdatedBy?, TUpdatedBy?> newUpdatedByFactory, CancellationToken cancellationToken = default)
        where TUpdatedBy : IEquatable <TUpdatedBy>
    {
        await updator.SetCreatedByAsync(newUpdatedByFactory, cancellationToken).DisableAwaitContext();

        return(updator.UpdatedBy = newUpdatedByFactory(updator.UpdatedBy));
    }
    ///// <summary>
    ///// 填充创建属性(支持日期时间为可空类型)。
    ///// </summary>
    ///// <exception cref="ArgumentNullException">
    ///// <paramref name="updation"/> is null.
    ///// </exception>
    ///// <typeparam name="TUpdation">指定的创建类型。</typeparam>
    ///// <param name="updation">给定的 <typeparamref name="TUpdation"/>。</param>
    ///// <param name="newUpdatedTime">给定的新创建日期对象(可选)。</param>
    ///// <param name="newUpdatedBy">给定的新创建者对象。</param>
    ///// <returns>返回 <typeparamref name="TUpdation"/>。</returns>
    //public static TUpdation PopulateUpdation<TUpdation>(this TUpdation updation,
    //    object newUpdatedBy, object? newUpdatedTime = null)
    //    where TUpdation : IObjectUpdation
    //{
    //    updation.PopulateCreation(newUpdatedBy, newUpdatedTime);

    //    if (newUpdatedTime.IsNotNull())
    //        updation.SetObjectUpdatedTime(newUpdatedTime);

    //    updation.SetObjectUpdatedBy(newUpdatedBy);

    //    return updation;
    //}

    ///// <summary>
    ///// 异步填充创建属性(支持日期时间为可空类型)。
    ///// </summary>
    ///// <exception cref="ArgumentNullException">
    ///// <paramref name="updation"/> is null.
    ///// </exception>
    ///// <typeparam name="TUpdation">指定的创建类型。</typeparam>
    ///// <param name="updation">给定的 <typeparamref name="TUpdation"/>。</param>
    ///// <param name="newUpdatedBy">给定的新创建者对象。</param>
    ///// <param name="newUpdatedTime">给定的新创建日期对象(可选)。</param>
    ///// <param name="cancellationToken">给定的 <see cref="CancellationToken"/>(可选)。</param>
    ///// <returns>返回一个包含 <typeparamref name="TUpdation"/> 的异步操作。</returns>
    //public static async Task<TUpdation> PopulateUpdationAsync<TUpdation>(this TUpdation updation,
    //    object? newUpdatedBy, object? newUpdatedTime = null, CancellationToken cancellationToken = default)
    //    where TUpdation : IObjectUpdation
    //{
    //    await updation.PopulateCreationAsync(newUpdatedBy, newUpdatedTime)
    //        .ConfigureAwait();

    //    if (newUpdatedTime.IsNotNull())
    //    {
    //        await updation.SetObjectUpdatedTimeAsync(newUpdatedTime, cancellationToken)
    //            .ConfigureAwaitWithoutContext();
    //    }

    //    await updation.SetObjectUpdatedByAsync(newUpdatedBy, cancellationToken)
    //        .ConfigureAwaitWithoutContext();

    //    return updation;
    //}

    #endregion


    #region IUpdator<TUpdatedBy>

    /// <summary>
    /// 获取创建者。
    /// </summary>
    /// <typeparam name="TUpdatedBy">指定的创建者类型(提供对整数、字符串、GUID 等类型的支持)。</typeparam>
    /// <param name="updator">给定的 <see cref="IUpdator{TUpdatedBy}"/>。</param>
    /// <param name="newUpdatedByFactory">给定的新创建者工厂方法。</param>
    /// <returns>返回 <typeparamref name="TUpdatedBy"/>(兼容标识或字符串)。</returns>
    public static TUpdatedBy?SetUpdatedBy <TUpdatedBy>(this IUpdator <TUpdatedBy> updator,
                                                       Func <TUpdatedBy?, TUpdatedBy?> newUpdatedByFactory)
        where TUpdatedBy : IEquatable <TUpdatedBy>
    {
        updator.SetCreatedBy(newUpdatedByFactory);

        return(updator.UpdatedBy = newUpdatedByFactory(updator.UpdatedBy));
    }