docs: def _validateSetting(value, policy):
      '''
      helper function to validate specified value is appropriate for the policy
      if the 'Settings' key is a list, the value will check that it is in the list
      if the 'Settings' key is a dict we will try to execute the function name
          from the 'Function' key, passing the value and additional arguments from
          the 'Args' dict
      if the 'Settings' key is None, we won't do any validation and just return
          True
      if the Policy has 'Children', we'll validate their settings too
      '''
      log.debug('validating %s for policy %s', value, policy)
      if 'Settings' in policy:
          if policy['Settings']:
              if isinstance(policy['Settings'], list):
                  if value not in policy['Settings']:
                      return False
              elif isinstance(policy['Settings'], dict):
                  _policydata = _policy_info()
                  if not getattr(_policydata, policy['Settings']['Function'])(value, **policy['Settings']['Args']):
                      return False
      else:
          return True
  
      return True