code: def _get_default_test_storage():
      """Return default configuration for the test storage"""
      return {
          "type": "legacy",
          "database": {"type": "PickledDB", "host": "${file}"},
      }
  
imports: import copy
  import os
  import tempfile
  import yaml
  import orion
  from orion.core.io import experiment_builder
  from orion.core.worker.trial import Trial
  from orion.storage.base import setup_storage, storage_factory
label_desc: Use image node_id 2 for calling a global function with example usage: _get_default_test_storage() and returns: dict