code: def test_slice_plane():
      x = gimg[1]
      assert x.shape == gimg.shape[1:]
  
imports: import warnings
  from itertools import chain
  import nibabel
  import numpy
  import pytest
  from numpy.testing import assert_almost_equal, assert_array_almost_equal, assert_array_equal
  from ...api import data_generator, parcels, write_data
  from ...reference.coordinate_map import AffineTransform, AxisError
  from ...reference.coordinate_system import CoordinateSystem
  from ..None import image
  from ..image import Image, is_image, iter_axis, rollimg
label_desc: Use image node_id 3 for calling a global function with example usage: test_slice_plane() without return types