code: def finalize_options(self):
          
          self.cwd = os.path.abspath(os.path.dirname(__file__))
          self.test_dir = os.path.join(self.cwd, 'tests')
docs: Finalizes the command's options.
  
          Args:
            self (CoverageCommand): the ``CoverageCommand`` instance
  
          Returns:
            ``None``