Take a look at this snip found at here
import ( \"encoding/xml\" \"fmt\" \"os\" ) func main() { type Address struct { City, State string
which mean that variable will present in the name of Person example
type sample struct { dateofbirth string `xml:"dob"` } In the above example, the field 'dateofbirth' will present in the name of 'dob' in the XML.
you will see this notation often in go struct.