You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: savings_service.go
    path of file: ./repos/go-binance/v2
    
    the code of the file until where you have to start completion: package binance

import (
	"context"
	"net/http"
)

// ListSavingsFlexibleProductsService https://binance-docs.github.io/apidocs/spot/en/#get-flexible-product-list-user_data
type ListSavingsFlexibleProductsService struct {
	c        *Client
	status   string
	featured string
	current  int64
	size     int64
}

// Status represent the product status ("ALL", "SUBSCRIBABLE", "UNSUBSCRIBABLE") - Default: "ALL"
func (s *ListSavingsFlexibleProductsService) Status(status string) *ListSavingsFlexibleProductsService {
	s.status = status
	return s
}

// Featured ("ALL", "TRUE") - Default: "ALL"
func (s *ListSavingsFlexibleProductsService) Featured(featured
    
func (s *ListSavingsFixedAndActivityProductsService) Do(ctx context.Context, opts ...RequestOption) ([]*SavingsFixedProduct, error) {
	r := &request{
		method:   http.MethodGet,
		endpoint: "/sapi/v1/lending/project/list",
		secType:  secTypeSigned,
	}
	m := params{
		"type": s.projectType,
	}
	if s.asset != "" {
		m["asset"] = s.asset
	}
	if s.status != "" {
		m["status"] = s.status
	}
	if s.isSortAsc != true {
		m["isSortAsc"] = s.isSortAsc
	}
	if s.sortBy != "" {
		m["sortBy"] = s.sortBy
	}
	if s.current != 1 {
		m["current"] = s.current
	}
	if s.size != 10 {
		m["size"] = s.size
	}
	r.setParams(m)
	data, err := s.c.callAPI(ctx, r, opts...)
	if err != nil {
		return nil, err
	}
	var res []*SavingsFixedProduct
	if err = json.Unmarshal(data, &res); err != nil {
		return nil, err
	}
	return res, nil
}