code: def _is_recently_stable(self) -> bool:
      return len(
          self.test_results
      ) >= CONTINUOUS_PASSING_TO_PASSING and all(
          result.is_passing()
          for result in self.test_results[
              :CONTINUOUS_PASSING_TO_PASSING
          ]
      )
  
file_path: ray/release/ray_release/test_automation/ci_state_machine.py
imports: from ray_release.test_automation.state_machine import TestStateMachine, DEFAULT_ISSUE_OWNER
  from ray_release.test import Test, TestState
label_desc: Use image node_id 10 for calling the CITestStateMachine obj's underlying member method code with example usage: obj._is_recently_stable() and returns: unknown