code: def _init(self, run_conf, run_number=None):
          '''Initialization before a new run.
          '''
          self.stop_run.clear()
          self.abort_run.clear()
          self._run_status = run_status.running
          self._write_run_number(run_number)
          self._init_run_conf(run_conff _init(self, run_conf, run_number=None):
          '''Initialization before a new run.
          '''
          self.stop_run.clear()
          self.abort_run.clear()
          self._run_status = run_status.running
          self._write_run_number(run_number)
          self._init_run_conf(run_conf)
docs: Initialization before a new run.