code: def terminate_instances(self, instance_ids: List[str]) -> List[str]:
      data = {"instance_ids": instance_ids}
      resp = self._make_request(
          "POST", "/instance-operations/terminate", data
      )
      if resp.ok:
          return resp.json()["data"]
      resp.raise_for_status()
  
file_path: dstack/src/dstack/_internal/core/backends/lambdalabs/api_client.py
imports: from typing import Any, Dict, List, Optional
  import requests
label_desc: Use image node_id 6 for calling the LambdaAPIClient obj's underlying member method code with example usage: obj.terminate_instances(instance_ids) and returns: resp