code: def save(self):
      print("* Preparing to save GGUF file")
      gguf_writer = gguf.GGUFWriter(
          self.cfg.output,
          gguf.MODEL_ARCH_NAMES[gguf.MODEL_ARCH.LLAMA],
          use_temp_file=False,
      )
      self.add_params(gguf_writer)
      self.add_vocab(gguf_writer)
      if self.special_vocab is not None:
          self.special_vocab.add_to_gguf(gguf_writer)
      self.add_tensors(gguf_writer)
      print("    gguf: write header")
      gguf_writer.write_header_to_file()
      print("    gguf: write metadata")
      gguf_writer.write_kv_data_to_file()
      print("    gguf: write tensors")
      gguf_writer.write_tensors_to_file()
      gguf_writer.close()
  
imports: from __future__ import annotations
  import argparse
  import struct
  import sys
  from enum import IntEnum
  from pathlib import Path
  import numpy
  import os
  import gguf
label_desc: Use image node_id 2 for calling the GGMLToGGUF obj's underlying member method code with example usage: obj.save() without return types