You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: update.rb
    path of file: ./repos/pivorak-web-app/components/courses/app/services/courses/test_task
    
    the code of the file until where you have to start completion: # frozen_string
    
      def call
        transaction do
          test_task.update(mentor_id: mentor_id, status: status, notes: notes)

          student.test_task_done!
        end
      end