def METHOD_NAME(self):
    if self.is_running:
        msg = f'{self.name} is running: {self.pid}.'
    else:
        msg = f'{self.name} is stopped.'
        if DEBUG:
            msg = '\033[31m{} is stopped.\033[0m\nYou can manual start it to find the error: \n' \
                  '  $ cd {}\n' \
                  '  $ {}'.format(self.name, self.cwd, ' '.join(self.cmd))
    print(msg)