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https://huggingface.co/spaces/jeffri703/multi-model-inference-endpoint/resolve/main/handler.py
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1.64 kB
| # handler.py | |
| import torch | |
| from transformers import AutoTokenizer, AutoModelForSeq2SeqLM, pipeline | |
| # check for GPU | |
| device = 0 if torch.cuda.is_available() else -1 | |
| # multi-model list | |
| multi_model_list = [ | |
| {"model_id": "distilbert-base-uncased-finetuned-sst-2-english", "task": "text-classification"}, | |
| {"model_id": "Helsinki-NLP/opus-mt-en-de", "task": "translation"}, | |
| {"model_id": "facebook/bart-large-cnn", "task": "summarization"}, | |
| {"model_id": "dslim/bert-base-NER", "task": "token-classification"}, | |
| {"model_id": "textattack/bert-base-uncased-ag-news", "task": "text-classification"}, | |
| ] | |
| class EndpointHandler(): | |
| def __init__(self, path=""): | |
| self.multi_model={} | |
| # load all the models onto device | |
| for model in multi_model_list: | |
| self.multi_model[model["model_id"]] = pipeline(model["task"], model=model["model_id"], device=device) | |
| def __call__(self, data): | |
| # deserialize incomin request | |
| inputs = data.pop("inputs", data) | |
| parameters = data.pop("parameters", None) | |
| model_id = data.pop("model_id", None) | |
| # check if model_id is in the list of models | |
| if model_id is None or model_id not in self.multi_model: | |
| raise ValueError(f"model_id: {model_id} is not valid. Available models are: {list(self.multi_model.keys())}") | |
| # pass inputs with all kwargs in data | |
| if parameters is not None: | |
| prediction = self.multi_model[model_id](inputs, **parameters) | |
| else: | |
| prediction = self.multi_model[model_id](inputs) | |
| # postprocess the prediction | |
| return prediction |