code: def backend_fixture():
      return MagicMock()
  
file_path: neptune-client/tests/unit/neptune/new/cli/test_clear.py
imports: import os
  from unittest.mock import MagicMock
  import pytest
  from neptune.cli.clear import ClearRunner
  from neptune.cli.utils import get_qualified_name
  from neptune.constants import ASYNC_DIRECTORY, OFFLINE_DIRECTORY, SYNC_DIRECTORY
  from neptune.internal.container_type import ContainerType
  from neptune.internal.operation import Operation
  from tests.unit.neptune.new.cli.utils import generate_get_metadata_container, prepare_v1_container
label_desc: Use image node_id 1 for calling a global function with example usage: backend_fixture() and returns: MagicMock