Update src/OAuthToken.php

Co-authored-by: Alexander Makarov <[email protected]>

src/OAuthToken.php

@@ -246,7 +246,7 @@ public function setRefreshToken($refreshToken)
         $this->setParam($this->refreshTokenParamKey, $refreshToken);
     }
 
-    public function getHasRefreshToken()
+    public function hasRefreshToken()
     {
         return !!$this->getRefreshToken();
     }