public function save($id, $data, $lifeTime=0) {
		return $this->driver->save($id, $data, $lifeTime);
	}
public function save($id, $data, $lifeTime=0) {
		return $this->driver->save($id, $data, $lifeTime);
	}
public function save ( $ id , $ data , $ lifeTime = 0 ) { return $ this -> driver -> save ( $ id , $ data , $ lifeTime ) ; }
Save a key-value.
@param  string  $id
@param  mixed   $data
@param  integer $lifeTime
@return boolean
@api
Save a key - value .