usamakenway's picture
Adding custom Inference Handler for HF endpoint
06e5302
from transformers import AutoTokenizer, TextGenerationPipeline, pipeline
from auto_gptq import AutoGPTQForCausalLM, BaseQuantizeConfig
from typing import Dict, List, Any
class EndpointHandler:
def __init__(self, path=""):
# load the model
tokenizer = AutoTokenizer.from_pretrained(path)
model = AutoGPTQForCausalLM.from_quantized(path, device="cuda:0", use_safetensors=True)
# create inference pipeline
self.pipeline = pipeline("text-generation", model=model, tokenizer=tokenizer)
def __call__(self, data: Any) -> List[List[Dict[str, float]]]:
inputs = data.pop("inputs", data)
parameters = data.pop("parameters", None)
# pass inputs with all kwargs in data
if parameters is not None:
prediction = self.pipeline(inputs, **parameters)
else:
prediction = self.pipeline(inputs)
# postprocess the prediction
return prediction