docs: func (s *StackSetOperationPreferences) Validate() error {
  	invalidParams := request.ErrInvalidParams{Context: "StackSetOperationPreferences"}
  	if s.MaxConcurrentCount != nil && *s.MaxConcurrentCount < 1 {
  		invalidParams.Add(request.NewErrParamMinValue("MaxConcurrentCount", 1))
  	}
  	if s.MaxConcurrentPercentage != nil && *s.MaxConcurrentPercentage < 1 {
  		invalidParams.Add(request.NewErrParamMinValue("MaxConcurrentPercentage", 1))
  	}
  
  	if invalidParams.Len() > 0 {
  		return invalidParams
  	}
  	return nil
  }