Why do you need to do that? Have you looked at the merge request approvals feature <a href="https:&#x2F;&#x2F;about.gitlab.com&#x2F;2015&#x2F;07&#x2F;29&#x2F;feature-highlight-merge-request-approvals&#x2F;" rel="nofollow">https:&#x2F;&#x2F;about.gitlab.com&#x2F;2015&#x2F;07&#x2F;29&#x2F;feature-highlight-merge-...</a> (EE&#x2F;.com only)?