/// <inheritdoc />
protected override void PrintContent(int shift)
{
AddMember(nameof(Avatar), Avatar, shift);
AddMember(nameof(Preview), Preview, shift);
AddMember(nameof(GroupName), GroupName, shift);
AddMember(nameof(MessageText), MessageText, shift);
AddMember(nameof(Phones), Phones?.PrintMembers(shift), shift);
AddMember(nameof(ChatIds), ChatIds?.PrintMembers(shift), shift);
}