Update model_translation.py

model_translation.py

@@ -21,10 +21,10 @@ class Singleton(type):
         return cls._instances[cls]
 
 class ModelM2M100(metaclass=Singleton):
-    """Loads an instance of the M2M100 model (418M).
+    """Loads an instance of the M2M100 model.
     """
     def __init__(self):
-        self._model_name = "facebook/m2m100_418M"
+        self._model_name = "facebook/m2m100_1.2B"
         self._tokenizer = M2M100Tokenizer.from_pretrained(self._model_name)
         self._model = M2M100ForConditionalGeneration.from_pretrained(
             self._model_name,