extract wa version to its own variable

session.go

@@ -15,6 +15,9 @@ import (
 	"github.com/Rhymen/go-whatsapp/crypto/hkdf"
 )
 
+//represents the WhatsAppWeb client version
+var waVersion = []int{0, 3, 3324}
+
 /*
 Session contains session individual information. To be able to resume the connection without scanning the qr code
 every time you should save the Session returned by Login and use RestoreWithSession the next time you want to login.
@@ -148,8 +151,7 @@ func (wac *Conn) Login(qrChan chan<- string) (Session, error) {
 	}
 
 	session.ClientId = base64.StdEncoding.EncodeToString(clientId)
-	//oldVersion=8691
-	login := []interface{}{"admin", "init", []int{0, 3, 3324}, []string{wac.longClientName, wac.shortClientName}, session.ClientId, true}
+	login := []interface{}{"admin", "init", waVersion, []string{wac.longClientName, wac.shortClientName}, session.ClientId, true}
 	loginChan, err := wac.writeJson(login)
 	if err != nil {
 		return session, fmt.Errorf("error writing login: %v\n", err)
@@ -303,7 +305,7 @@ func (wac *Conn) Restore() error {
 	wac.listener.Unlock()
 
 	//admin init
-	init := []interface{}{"admin", "init", []int{0, 3, 2390}, []string{wac.longClientName, wac.shortClientName}, wac.session.ClientId, true}
+	init := []interface{}{"admin", "init", waVersion, []string{wac.longClientName, wac.shortClientName}, wac.session.ClientId, true}
 	initChan, err := wac.writeJson(init)
 	if err != nil {
 		return fmt.Errorf("error writing admin init: %v\n", err)