code: def get_input_output_texts(self, tokenizer):
      input_text = "こんにちは、世界。 \nこんばんは、㔺界。😀"
      output_text = "こんにちは、世界。 \nこんばんは、世界。😀"
      return input_text, output_text
  
file_path: transformers/tests/models/gpt_neox_japanese/test_tokenization_gpt_neox_japanese.py
imports: import json
  import os
  import unittest
  from transformers.models.gpt_neox_japanese.tokenization_gpt_neox_japanese import VOCAB_FILES_NAMES, GPTNeoXJapaneseTokenizer
  from transformers.testing_utils import require_tokenizers, slow
  from ...test_tokenization_common import TokenizerTesterMixin
label_desc: Use image node_id 3 for calling the GPTNeoXJapaneseTokenizationTest obj's underlying member method code with example usage: obj.get_input_output_texts(tokenizer) and returns: input_text,  output_text