import ( "github.com/jmoiron/sqlx" "database/sql" ) type User struct { ID int `json:"id" db:"id"` Username string `json:"username" db:"username"` Email string `json:"email" db:"email"` Age int `json:"age" db:"age"` } func GetUserByID(tx *sql.Tx, id int) (*User, error) { u := &User{} query := `SELECT * FROM users WHERE id = $1` err := sqlx.Get(tx, u, query, id) if err != nil { return nil, err } return u, nil }In this example, we define a `User` struct that represents a row in our users table. The `GetUserByID` function takes a transaction and an ID as input, and returns a pointer to a User struct and an error. Inside the function, we create an empty User struct and a SQL query that selects a row from the users table based on its ID. We then pass these as arguments to the `Get` method of the `sqlx` package along with the transaction object. If the query is successful, `Get` will populate the User struct with the values from the selected row and return nil. If there is an error, it will return an error object. Overall, `Tx Get` is a simple but powerful method for retrieving specific rows from a SQL database using transactions.