package docdb type DocDB struct { } type Doc struct { Id string Content string Vector []float64 } type DocReturn struct { *Doc Err error } func NewDocDB() *DocDB { return &DocDB{} } func (ddb *DocDB) Init(keyspace, user string) { } func (ddb *DocDB) Put(docid string, doc string) { } func (ddb *DocDB) Get(docid string) string { return "" } func (ddb *DocDB) Remove(docid string) { } func (ddb *DocDB) Search(keywords []string) <-chan *DocReturn { return nil }