add emotion classification

emotions.py

@@ -5,7 +5,7 @@ tokenizer = AutoTokenizer.from_pretrained("mrm8488/t5-base-finetuned-emotion")
 model = AutoModelWithLMHead.from_pretrained("mrm8488/t5-base-finetuned-emotion")
 
 
-def get_emotion(text):
+def get_emotion(text='No text yet'):
     input_ids = tokenizer.encode(text + '</s>', return_tensors='pt')
 
     output = model.generate(input_ids=input_ids,