code: def test_as_text(self):
      origin_str = "str"
      origin_bytes = b"bytes"
      converted_str = tl.nlp.as_text(origin_str)
      converted_bytes = tl.nlp.as_text(origin_bytes)
      print("str after using as_text:", converted_str)
      print("bytes after using as_text:", converted_bytes)
  
file_path: TensorLayer/tests/test_nlp.py
imports: import os
  import unittest
  import nltk
  import tensorlayer
  from tests.utils import CustomTestCase
label_desc: Use image node_id 4 for calling the Test_Leaky_ReLUs obj's underlying member method code with example usage: obj.test_as_text() without return types