code: def test_remember_last(self):
      # Store the count in a list so we can mutate it from inside `func`.
      call_count = [0]
  
      @remember_last
      def func(x):
          call_count[0] += 1
          return x
  
      self.assertEqual((func(1), call_count[0]), (1, 1))
  
      # Calling again with the same argument should just re-use the old
      # value, which means func shouldn't get called again.
      self.assertEqual((func(1), call_count[0]), (1, 1))
      self.assertEqual((func(1), call_count[0]), (1, 1))
  
      # Calling with a new value should increment the counter.
      self.assertEqual((func(2), call_count[0]), (2, 2))
      self.assertEqual((func(2), call_count[0]), (2, 2))
  
      # Calling the old value should still increment the counter.
      self.assertEqual((func(1), call_count[0]), (1, 3))
      self.assertEqual((func(1), call_count[0]), (1, 3))
  
file_path: catalyst/tests/test_memoize.py
imports: from collections import defaultdict
  import gc
  from unittest import TestCase
  from catalyst.utils.memoize import remember_last
label_desc: Use image node_id 1 for calling the TestRememberLast obj's underlying member method code with example usage: obj.test_remember_last() and returns: x