code: def test_io_events(tmp_path):
      """Test IO for events."""
      # Test binary fif IO
      events = read_events(fname)  # Use as the gold standard
      fname_temp = tmp_path / "events-eve.fif"
      write_events(fname_temp, events)
      events2 = read_events(fname_temp)
      assert_array_almost_equal(events, events2)
  
      # Test binary fif.gz IO
      events2 = read_events(fname_gz)  # Use as the gold standard
      assert_array_almost_equal(events, events2)
      fname_temp = str(fname_temp) + ".gz"
      write_events(fname_temp, events2)
      events2 = read_events(fname_temp)
      assert_array_almost_equal(events, events2)
  
      # Test new format text file IO
      fname_temp = tmp_path / "events.eve"
      write_events(fname_temp, events)
      events2 = read_events(fname_temp)
      assert_array_almost_equal(events, events2)
      with pytest.warns(RuntimeWarning, match="first row of"):
          events2 = read_events(
              fname_txt_mpr, mask=0, mask_type="not_and"
          )
      assert_array_almost_equal(events, events2)
  
      # Test old format text file IO
      events2 = read_events(fname_old_txt)
      assert_array_almost_equal(events, events2)
      write_events(fname_temp, events, overwrite=True)
      events2 = read_events(fname_temp)
      assert_array_almost_equal(events, events2)
  
      # Test event selection
      fname_temp = tmp_path / "events-eve.fif"
      a = read_events(fname_temp, include=1)
      b = read_events(fname_temp, include=[1])
      c = read_events(fname_temp, exclude=[2, 3, 4, 5, 32])
      d = read_events(fname_temp, include=1, exclude=[2, 3])
      assert_array_equal(a, b)
      assert_array_equal(a, c)
      assert_array_equal(a, d)
  
      # test reading file with mask=None
      events2 = events.copy()
      events2[:, -1] = range(events2.shape[0])
      write_events(fname_temp, events2, overwrite=True)
      events3 = read_events(fname_temp, mask=None)
      assert_array_almost_equal(events2, events3)
  
      # Test binary file IO for 1 event
      events = read_events(fname_1)  # Use as the new gold standard
      write_events(fname_temp, events, overwrite=True)
      events2 = read_events(fname_temp)
      assert_array_almost_equal(events, events2)
  
      # Test text file IO for 1 event
      fname_temp = tmp_path / "events.eve"
      write_events(fname_temp, events, overwrite=True)
      events2 = read_events(fname_temp)
      assert_array_almost_equal(events, events2)
  
      # test warnings on bad filenames
      fname2 = tmp_path / "test-bad-name.fif"
      with pytest.warns(RuntimeWarning, match="-eve.fif"):
          write_events(fname2, events)
      with pytest.warns(RuntimeWarning, match="-eve.fif"):
          read_events(fname2)
  
      # No event_id
      with pytest.raises(RuntimeError, match="No event_id"):
          read_events(fname, return_event_id=True)
  
imports: import os
  from pathlib import Path
  import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_array_almost_equal, assert_array_equal, assert_equal
  from mne import Annotations, Epochs, compute_raw_covariance, count_events, create_info, find_events, find_stim_steps, make_fixed_length_events, pick_channels, pick_events, read_events, read_evokeds, write_events
  from mne.datasets import testing
  from mne.event import AcqParserFIF, define_target_events, match_event_names, merge_events, shift_time_events
  from mne.io import RawArray, read_raw_fif
label_desc: Use image node_id 4 for calling a global function with example usage: test_io_events(tmp_path) without return types