public static function setAccessToken($access_token){
      if (!isset(self::$_config)){
        self::initialize();
      }
      self::$_config->configure(['ACCESS_TOKEN' => $access_token]);
      
    }
public static function setAccessToken($access_token){
      if (!isset(self::$_config)){
        self::initialize();
      }
      self::$_config->configure(['ACCESS_TOKEN' => $access_token]);
      
    }
public static function setAccessToken ( $ access_token ) { if ( ! isset ( self :: $ _config ) ) { self :: initialize ( ) ; } self :: $ _config -> configure ( [ 'ACCESS_TOKEN' => $ access_token ] ) ; }
Set Access Token for SDK .
Set Access Token for SDK .