Do I need to bring my wife to my derivative asylee I-485 interview?

[JsonB]

My wife is a principle asylum applicant whose asylum was granted in 2014. My I-730 was approved in November 2015. In November 2016, I applied for AOS I-485 and Interview is scheduled for this month of December. Interview letter doesn't clearly says about bringing my wife to the interview.
According to the letter, both needs to be present for family petition. I am not sure, this case is considered as a family petition.

[arbrts]

Better for her to come and sit in the waiting room than have her not come and need her to be there in my opinion.