docstr: Test for next word extraction
docstr_tok: ["Test","for","next","word","extraction"]
code: def test_next_word(self):
      """
      Test for next word extraction
      """
      keyword_proc = KeywordProcessor()
      self.assertEqual(keyword_proc.get_next_word(""), "")
      self.assertEqual(
          keyword_proc.get_next_word("random sentence"), "random"
      )
      self.assertEqual(
          keyword_proc.get_next_word(" random sentence"), ""
      )
  
file_path: flashtext/test/test_kp_next_word.py
imports: from flashtext import KeywordProcessor
  import logging
  import unittest
label_desc: Use image node_id 3 for calling the TestKPNextWord obj's underlying member method code with example usage: obj.test_next_word() without return types