wassemgtk philschmid HF staff commited on
Commit
aaab177
1 Parent(s): c7d4491

Create handler.py (#2)

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- Create handler.py (4fa57246e1d79793a264dc76bc1194e111ec6b0b)


Co-authored-by: Philipp Schmid <[email protected]>

Files changed (1) hide show
  1. handler.py +27 -0
handler.py ADDED
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+ import torch
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+ from typing import Dict, List, Any
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+ from transformers import AutoTokenizer, AutoModelForCausalLM, pipeline
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+
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+ # check for GPU
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+ device = 0 if torch.cuda.is_available() else -1
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+
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+
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+ class EndpointHandler:
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+ def __init__(self, path=""):
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+ # load the model
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+ tokenizer = AutoTokenizer.from_pretrained(path)
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+ model = AutoModelForCausalLM.from_pretrained(path, low_cpu_mem_usage=True)
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+ # create inference pipeline
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+ self.pipeline = pipeline("text-generation", model=model, tokenizer=tokenizer, device=device)
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+
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+ def __call__(self, data: Any) -> List[List[Dict[str, float]]]:
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+ inputs = data.pop("inputs", data)
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+ parameters = data.pop("parameters", None)
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+
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+ # pass inputs with all kwargs in data
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+ if parameters is not None:
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+ prediction = self.pipeline(inputs, **parameters)
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+ else:
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+ prediction = self.pipeline(inputs)
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+ # postprocess the prediction
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+ return prediction