chunk_content: define IA3-specific parameters.
  Wrap the base model with get_peft_model() to get a trainable PeftModel.
  Train the PeftModel as you normally would train the base model.
  IA3Config allows you to control how IA3 is applied to the base model through the following parameters: 
  target_modules: The modules (for example, attention blocks) to apply the IA3 vectors.
  feedforward_modules: The list of modules to be treated as feedforward layers in target_mod