YAML Metadata Warning: empty or missing yaml metadata in repo card (https://huggingface.co/docs/hub/model-cards#model-card-metadata)

To use the model, add the following from the transformers package:

(1) Tokenizer:

tokenizer = AutoTokenizer.from_pretrained("yikuan8/Clinical-BigBird")

(2) Model type:

#T in [1,2,3,4]

num_classes = 4

model = BigBirdForSequenceClassification.from_pretrained(directory, num_labels=num_classes)