code: def test_delete_key_and_reassign(self):
      m = SeparateChainingHashTable(10)
      m.put(1, 1)
      del m[1]
      m.put(1, 2)
      self.assertEqual(2, m.get(1))
  
imports: from algorithms.map import HashTable, ResizableHashTable, SeparateChainingHashTable, word_pattern, is_isomorphic, is_anagram, longest_palindromic_subsequence
  import unittest
label_desc: Use image node_id 6 for calling the TestSeparateChainingHashTable obj's underlying member method code with example usage: obj.test_delete_key_and_reassign() without return types