code: def _test_array_get_block(x):
      b0 = array_get_block(x, 1, 8, 2, 1, 8, 2, 1, 8, 2, 1, 8, 2)
      b = x[1:8:2, 1:8:2, 1:8:2, 1:8:2]
      assert_array_equal(b0, b)
  
file_path: nipy/nipy/labs/bindings/tests/test_array.py
imports: import numpy
  from numpy.testing import assert_almost_equal, assert_array_equal
  from ..None import array_add, array_div, array_get, array_get_block, array_mul, array_sub
label_desc: Use image node_id 4 for calling a global function with example usage: _test_array_get_block(x) without return types