code: def test_getitem():
      assert (
          datashape.typesets.registry["integral"] == datashape.integral
      )
  
file_path: datashader/datashader/datashape/tests/test_typeset.py
imports: from datashader import datashape
  import pytest
label_desc: Use image node_id 5 for calling a global function with example usage: test_getitem() without return types