code: def get_n_cpu(self):
      return self._ray_execution_config["n_cpu"]
  
imports: import os
  import logging
  from typing import Dict, List, Union
  from .....core.operand import ShuffleFetchType
  from .....resource import Resource
  from ..api import ExecutionConfig, register_config_cls
  from ..utils import get_band_resources_from_config
label_desc: Use image node_id 7 for calling the RayExecutionConfig obj's underlying member method code with example usage: obj.get_n_cpu() and returns: self