AttributeError: 'SVM' object has no attribute 'n_iters'

Question

AttributeError
Traceback (most recent call last)
<ipython-input-10-71ceaefd4104> in <module>()
      4 #Train the model using the training sets
      5 #ml.fit(x_train, y_train)
----> 6 s.fit(x_train, y_train)
      7 #Predict the response for test dataset
      8 y_pred = s.predict(x_test)

<ipython-input-9-c55e0ec9e040> in fit(self, X, y)
     14         self.b = 0
     15 
---> 16         for _ in range(self.n_iters):
     17             for idx, x_i in enumerate(X):
     18                 condition = y_[idx] * (np.dot(x_i, self.w) - self.b) >= 1

AttributeError: 'SVM' object has no attribute 'n_iters'