code: def version_command(args):
      print(_nnabla_version())
  
file_path: nnabla/python/src/nnabla/utils/cli/cli.py
imports: import argparse
  import os
  import sys
  import warnings
  from nnabla.logger import logger
label_desc: Use image node_id 2 for calling a global function with example usage: version_command(args) without return types