code: def test_plot_topomap_bads():
      """Test plotting topomap with bad channels (gh-7213)."""
      import matplotlib.pyplot as plt
  
      data = np.random.RandomState(0).randn(3, 1000)
      raw = RawArray(data, create_info(3, 1000.0, "eeg"))
      ch_pos_dict = {
          name: pos for name, pos in zip(raw.ch_names, np.eye(3))
      }
      raw.info.set_montage(
          make_dig_montage(ch_pos_dict, coord_frame="head")
      )
      for count in range(3):
          raw.info["bads"] = raw.ch_names[:count]
          raw.info._check_consistency()
          plot_topomap(data[:, 0], raw.info)
      plt.close("all")
  
imports: from functools import partial
  from pathlib import Path
  import matplotlib
  import matplotlib.pyplot
  import numpy
  import pytest
  from matplotlib.patches import Circle
  from numpy.testing import assert_almost_equal, assert_array_equal, assert_equal
  from mne import Epochs, EvokedArray, Projection, compute_proj_evoked, compute_proj_raw, create_info, find_layout, make_fixed_length_events, pick_types, read_cov, read_evokeds, read_proj
  from mne._fiff.compensator import get_current_comp
  from mne._fiff.constants import FIFF
  from mne._fiff.pick import _picks_to_idx, channel_indices_by_type, pick_info
  from mne._fiff.proj import make_eeg_average_ref_proj
  from mne.channels import find_ch_adjacency, make_dig_montage, make_standard_montage, read_layout
  from mne.datasets import testing
  from mne.io import RawArray, read_info, read_raw_fif
  from mne.preprocessing import compute_bridged_electrodes
  from mne.time_frequency.tfr import AverageTFR
  from mne.viz import plot_evoked_topomap, plot_projs_topomap, topomap
  from mne.viz.tests.test_raw import _proj_status
  from mne.viz.topomap import _get_pos_outlines, _onselect, plot_arrowmap, plot_bridged_electrodes, plot_ch_adjacency, plot_psds_topomap, plot_topomap
  from mne.viz.utils import _fake_click, _fake_keypress, _fake_scroll, _find_peaks
label_desc: Use image node_id 15 for calling a global function with example usage: test_plot_topomap_bads() without return types