if001

when I call `langchain.llms.HuggingFacePipeline` class using `transformers.TextGenerationPipeline` class, raise bellow error. https://github.com/hwchase17/langchain/blob/master/langchain/llms/huggingface_pipeline.py#L157 ```python pipe = TextGenerationPipeline(model=model, tokenizer=tokenizer) hf = HuggingFacePipeline(pipeline=pipe) ``` Is this behavior expected? I may call method that...