code: def encode(self, text: str, question: str):
      prompt = QA_PROMPT.format(text=text, question=question)
      return self.pre_processor(prompt, return_tensors="pt")
  
imports: from ..models.auto import AutoModelForSeq2SeqLM, AutoTokenizer
  from .base import PipelineTool
label_desc: Use image node_id 1 for calling the TextQuestionAnsweringTool obj's underlying member method code with example usage: obj.encode(text, question) and returns: self