docs: func (s *ReorderReceiptRuleSetInput) Validate() error {
  	invalidParams := request.ErrInvalidParams{Context: "ReorderReceiptRuleSetInput"}
  	if s.RuleNames == nil {
  		invalidParams.Add(request.NewErrParamRequired("RuleNames"))
  	}
  	if s.RuleSetName == nil {
  		invalidParams.Add(request.NewErrParamRequired("RuleSetName"))
  	}
  
  	if invalidParams.Len() > 0 {
  		return invalidParams
  	}
  	return nil
  }