code: def add_version(experiment):
      """Add version 1 if not present"""
      experiment.setdefault("version", 1)
  
file_path: orion/src/orion/core/cli/db/upgrade.py
imports: import argparse
  import logging
  import sys
  from orion.core.io import experiment_builder
  from orion.core.io.config import ConfigurationError
  from orion.core.io.database.ephemeraldb import EphemeralCollection
  from orion.core.io.database.mongodb import MongoDB
  from orion.core.io.database.pickleddb import PickledDB
  from orion.storage.legacy import Legacy
label_desc: Use image node_id 6 for calling a global function with example usage: add_version(experiment) without return types