Update README.md

README.md

@@ -68,6 +68,7 @@ with torch.no_grad():
 ## For Sequence Completion:
 ```python
 from transformers import T5ForConditionalGeneration, T5Tokenizer, T5EncoderModel
+from transformers.generation import GenerationConfig
 import torch
 
 sequence = "MDTAYPREDTRAPTPSKAGAHTALTLGAPHPPPRDHLIWSVFSTLYLNLCCLGFLALAYSIKARDQKVVGDLEAARRFGSKAKCYNILAAMWTLVPPLLLLGLVVTGALHLARLAKDSAAFFSTKFDDADYD"