Update file model.py

model.py

@@ -18,15 +18,15 @@ class Model:
         print(f"Model's embedding size is {self.params.vocab_size}")
 
 
-    def parameters():
+    def parameters(self):
         return self.model.parameters()
 
 
-    def unfreeze():
+    def unfreeze(self):
         self.model.train()
 
 
-    def freeze():
+    def freeze(self):
         self.model.eval()