How to hide struct fields when serializing to JSON in Go?

Hello everyone! I just started learning Go and encountered a problem when working with JSON. I have a `User` struct that contains many fields, but in the API JSON response I need to return only some of them. For example, I don't want to show the password and the internal user ID. Here's my code: ```go type User struct { ID int `json:"id"` Name string `json:"name"` Email string `json:"email"` Password string `json:"password"` InternalID string `json:"internal_id"` } func main() { user := User{ ID: 1, Name: "Ivan", Email: "ivan@example.com", Password: "secret123", InternalID: "int-001", } jsonData, _ := json.Marshal(user) fmt.Println(string(jsonData)) // Outputs: {"id":1,"name":"Iva