docs: def list_users(profile="splunk"):
      '''
      List all users in the splunk DB
  
      CLI Example:
  
          salt myminion splunk.list_users
      '''
  
      config = __salt__['config.option'](profile)
      key = "splunk.users.{0}".format(
          config.get('host')
      )
  
      if key not in __context__:
          _populate_cache(profile)
  
      return __context__[key]