Does OK API for groups or how to track referrals?

Question

Classmates

Good day to all. Do classmates have the ability to track transitions to the group using referral links?
For example: https://ok.ru/mygroup?some_ref_link=value
Ideally, you want to pull the script along the transition in order to keep statistics. I did not find such an option in the statistics of the group itself, nor in the documentation.