code: def _model_generate(self, context, max_length, eos_token_id):
      raise NotImplementedError()
  
file_path: tinygrad/test/external/external_llama_eval.py
imports: from lm_eval.base import BaseLM
  from lm_eval import evaluator, tasks
  import torch, json, argparse
  from examples.llama import LLaMa
  from tinygrad.tensor import Tensor
  from tinygrad import Device
label_desc: Use image node_id 12 for calling the LLaMaAdaptor obj's underlying member method code with example usage: obj._model_generate(context, max_length, eos_token_id) without return types