Using 'n' and 'v' pos tag together in WordNetLemmatizer

In the Step 4 of this short project, we were shown two ways of lemmatizing words, i.e. either using nouns or using verbs. I’m wondering if we can club them together?
I ask so, because I feel there’s not a lot of common words for these categories, and in case there are we may define to keep (say) the lemmatization according to noun.

Hey, thanks for reaching out! Hmm, I’m not sure I follow. Are you asking whether or not you can pass both n and v as the pos argument? I don’t believe you can. The NLTK documentation can provide some detail on this.

If this is not your question, can you please provide more detail?