code: def test_slice_defaults(ant, sphere, uniform, airplane, tetbeam):
      multi = multi_from_datasets(
          ant, sphere, uniform, airplane, tetbeam
      )
      assert multi[:] == multi[0 : len(multi)]
  
imports: import pathlib
  import platform
  import weakref
  import numpy
  import pytest
  import vtk
  import pyvista
  from pyvista import ImageData, MultiBlock, PolyData, RectilinearGrid, StructuredGrid, examples
label_desc: Use image node_id 27 for calling a global function with example usage: test_slice_defaults(ant, sphere, uniform, airplane, tetbeam) without return types