code: def validate_command(command):
      """Validate command existence"""
      return command in (VERSION_NAME, UP_NAME)
  
file_path: aim/aim/cli/manager/manager.py
imports: import subprocess
  import time
  import enum
  from aim.cli.configs import VERSION_NAME, UP_NAME
  from aim.__version__ import __version__
label_desc: Use image node_id 4 for calling a global function with example usage: validate_command(command) and returns: unknown