code: def test_ica_ch_types(ch_type):
      """Test ica with different channel types."""
      # gh-8739
      data = np.random.RandomState(0).randn(10, 1000)
      info = create_info(10, 1000.0, ch_type)
      raw = RawArray(data, info)
      events = make_fixed_length_events(
          raw, 99999, start=0, stop=0.3, duration=0.1
      )
      epochs = Epochs(
          raw,
          events=events,
          tmin=-0.1,
          tmax=0.1,
          baseline=None,
          preload=True,
          proj=False,
      )
      evoked = epochs.average()
      # test fit
      method = "infomax"
      for inst in [raw, epochs]:
          ica = ICA(n_components=2, max_iter=2, method=method)
          with _record_warnings():
              ica.fit(inst, verbose=True)
          _assert_ica_attributes(ica)
      # test apply and get_sources
      for inst in [raw, epochs, evoked]:
          ica.apply(inst)
          ica.get_sources(inst)
  
imports: import os
  import shutil
  from contextlib import nullcontext
  from pathlib import Path
  import matplotlib.pyplot
  import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_array_almost_equal, assert_array_equal, assert_equal
  from scipy import linalg, stats
  from scipy.io import loadmat, savemat
  from mne import Annotations, Epochs, EpochsArray, EvokedArray, Info, create_info, make_ad_hoc_cov, pick_channels_regexp, pick_types, read_events
  from mne._fiff.pick import _DATA_CH_TYPES_SPLIT, get_channel_type_constants
  from mne.cov import read_cov
  from mne.datasets import testing
  from mne.event import make_fixed_length_events
  from mne.io import RawArray, read_raw_ctf, read_raw_eeglab, read_raw_fif
  from mne.io.eeglab.eeglab import _check_load_mat
  from mne.preprocessing import ICA
  from mne.preprocessing import ica_find_ecg_events, ica_find_eog_events, read_ica
  from mne.preprocessing.ica import _ica_explained_variance, _sort_components, corrmap, get_score_funcs, read_ica_eeglab
  from mne.rank import _compute_rank_int
  from mne.utils import _record_warnings, catch_logging, check_version
label_desc: Use image node_id 30 for calling a global function with example usage: test_ica_ch_types(ch_type) without return types