code: def test_early_stopping_on_last_event_delta():
      scores = iter([0.0, 0.3, 0.6])
  
      trainer = Engine(do_nothing_update_fn)
  
      h = EarlyStopping(
          patience=2,
          min_delta=0.4,
          cumulative_delta=False,
          score_function=lambda _: next(scores),
          trainer=trainer,
      )
  
      assert not trainer.should_terminate
      h(None)  # counter == 0
      assert not trainer.should_terminate
      h(None)  # delta == 0.3; counter == 1
      assert not trainer.should_terminate
      h(None)  # delta == 0.3; counter == 2
      assert trainer.should_terminate
  
imports: import os
  import pytest
  import torch
  import ignite.distributed
  from ignite.engine import Engine, Events
  from ignite.handlers import EarlyStopping
label_desc: Use image node_id 6 for calling a global function with example usage: test_early_stopping_on_last_event_delta() without return types