code: def test_cannot_instantiate_2d_channels():
      # Channel definition over wrong number of pixels (5 instead of 100)
      with pytest.raises(ValueError):
          s = InvertedEncoding2D(
              stim_xlim=[-1, 1],
              stim_ylim=[-1, 1],
              stimulus_resolution=10,
              channels=np.random.rand(5, 5),
          )
          assert s, "Invalid InvertedEncoding2D instance"
  
imports: import pytest
  import numpy
  import logging
  from brainiak.reconstruct.iem import InvertedEncoding1D, InvertedEncoding2D
  from brainiak.utils.fmrisim import generate_1d_gaussian_rfs, generate_1d_rf_responses
  from scipy.stats import circmean
label_desc: Use image node_id 7 for calling a global function with example usage: test_cannot_instantiate_2d_channels() without return types