forcing TCP in Net::DNS?

[Morty]

Using Net:NS, I'd like to be able to force TCP lookups even for
queries that shouldn't need TCP. dig supports this using the +tcp
option. Does Net:NS have a method to do this? Net:NS::Resolver
describes how to set TCP persistence and a TCP timeout, but I don't
see a way to force TCP.

Thanks.

- Morty