def leakage(self,
                w_l=1e-2,
                vgs=None,
                vth=None):
        """
        Calculates leakage current using the deep learning model
        """
        if not self._leakage_:
            return "Leakage model is not trained yet"
        # Vgs
        if vgs is None:
            vgs = self._terminals_['gate'] - self._terminals_['source']
        else:
            vgs = vgs
        # Vth
        if vth is None:
            vth = self._params_['Vth']
        else:
            vth = vth

        # Predict
        x = np.array([w_l,vgs,vth])
        ip = x.reshape(-1,3)
        result = float(10**(-self.leakage_model.predict(ip)))

        return result