protected internal override Value FetchNextOrNull()
{
Value value;
if (FractionDuplicates > 0 && UniqueValues.Count > 0 && RandomValues.nextFloat() < FractionDuplicates)
{
value = RandomValues.among(UniqueValues);
}
else
{
value = NewUniqueValue(RandomValues, UniqueCompareValues, UniqueValues);
}
return(value);
}