BertTextClassifier init guaranteed to raise NotImplementedError

scibert/scibert/models/bert_text_classifier.py

Line 37 in ae9f98f

    
           self.classifier_feedforward = torch.nn.Linear(self.text_field_embedder.get_output_dim()  , self.num_classes)

BertTextClassifier requires an instance of TextFieldEmbedder and calls get_output_dim on that instance, however that method always raises NotImplementedError. Is this meant to deliberately un-implement a method from the superclass, or is it intended that that functionality will be implemented at a future time?