code: def test_collision(self):
      _ = torchbearer.state_key("test")
      key_1 = torchbearer.state_key("test")
      key_2 = torchbearer.state_key("test")
  
      self.assertTrue("test" != str(key_1))
      self.assertTrue("test" != str(key_2))
  
imports: import unittest
  import warnings
  import torchbearer
  from torchbearer.state import State
label_desc: Use image node_id 5 for calling the TestStateKey obj's underlying member method code with example usage: obj.test_collision() without return types