Evaluates the status check and returns a pass/fail with message.

        Args:
            env: Describes a prepared python 3 environment in which to run.
            verbose: When set, more progress output is produced.

        Returns:
            A tuple containing a pass/fail boolean and then a details message.

def perform_check(self,
                      env: env_tools.PreparedEnv,
                      verbose: bool) -> Tuple[bool, str]:
        """Evaluates the status check and returns a pass/fail with message.

        Args:
            env: Describes a prepared python 3 environment in which to run.
            verbose: When set, more progress output is produced.

        Returns:
            A tuple containing a pass/fail boolean and then a details message.
        """