code: def list_instance_types(self):
      resp = self._make_request("GET", "/instance-types")
      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 3 for calling the LambdaAPIClient obj's underlying member method code with example usage: obj.list_instance_types() and returns: resp