code: def _backend(self) -> NeptuneBackend:
      return self._container._backend
  
file_path: neptune-client/src/neptune/attributes/attribute.py
imports: from typing import TYPE_CHECKING, List
  from neptune.exceptions import TypeDoesNotSupportAttributeException
  from neptune.internal.backends.neptune_backend import NeptuneBackend
  from neptune.internal.operation import Operation
  from neptune.types.value_copy import ValueCopy
label_desc: Use image node_id 4 for calling the Attribute obj's underlying member method code with example usage: obj._backend() and returns: self