docs: def handle_error(self, error, download_request):
          """
          Checks what error occured and looks for an appropriate solution.
  
          Args:
            error: Exception
              The error that has occured.
            download_request:
              The request which resulted in the error.
          """
          if hasattr(error, "errno") and error.errno == errno.EACCES:
              self.handle_certificate_problem(str(error))
          else:
              self.handle_general_download_error(str(error), download_request)