Python UnitTest - How can I access subTests messages without having to write them manually?

A little bit of context: I am using Python and Selenium for QA Web Automation and I am using the Page Object Model pattern. I am currently in the process of making the logger part of the system, and I want to make the code more efficient, without having to write a lot of dublicate code. I checked the docs for subTests, but can't find anything in particular and this is the reason I am here. So I am wondering if there is a way to access this part of the code (so I don't have to write each logger message each time, which is not very practical):

  class TestScenario(unittest.TestCase):

      .... # set Up class

      def logger(self,info):
          logger.error(f"Error happened at {info}")

      def test_method(self):

          with self.subTest("MESSAGE"):---------------------------------------------                                     
                                                                                   |
              try:                                                                 |
                  ... something                                                    |
              except AssertionError:                                               | 
                  self.logger(#Is there a way to access subTest msg parameter?) <---
                  raise

          .... other subTests which will follow the same pattern

Thank you in advance!