public CharSetProperty(IEnumerable <string> value = null)
{
if (value is null)
{
this.value = new RefcountSet <string>();
}
else
{
this.value = new RefcountSet <string>(value);
}
}
public BaseNote(string contents, HashSet <Guid> topics = null)
{
this.contents = contents;
if (topics is null)
{
this.topics = new RefcountSet <Guid>();
}
else
{
this.topics = new RefcountSet <Guid>(topics);
}
}