public ImmSet <T> Produce()
{
//we need to change the lineage to avoid mutating user-visible data
_lineage = Lineage.Mutable();
return(_inner.Wrap(_eq));
}
public ImmSet <T> Produce()
{
//we need to change the lineage to avoid mutating user-visible data
_lineage = Lineage.Mutable();
return(_inner.Wrap(_eq));
}