from transformers import AutoTokenizer, AutoModelForSeq2SeqLM

# Load the BART tokenizer and model
tokenizer = AutoTokenizer.from_pretrained("EE21/BART-ToSSimplify")
model = AutoModelForSeq2SeqLM.from_pretrained("EE21/BART-ToSSimplify")

# Define the abstractive summarization function
def summarize_with_bart(input_text):
    inputs = tokenizer.encode("summarize: " + input_text, return_tensors="pt", max_length=1024, truncation=True)
    summary_ids = model.generate(inputs, max_length=500, min_length=300, num_beams=4)
    summary = tokenizer.decode(summary_ids[0], skip_special_tokens=True)
    return summary