code: def get_cache_key() -> str:
      raise NotImplementedError
  
imports: from typing import Any
  from ..types.syft_object import SYFT_OBJECT_VERSION_1
  from ..types.syft_object import SyftObject
label_desc: Use image node_id 1 for calling the NodeConnection obj's underlying member method code with example usage: obj.get_cache_key() without return types