code: def test_array_str(self):
      self.assertEqual(str(dshape("3*5*int16")), "3 * 5 * int16")
  
file_path: datashader/datashader/datashape/tests/test_str.py
imports: import unittest
  import pytest
  from datashader import datashape
  from datashader.datashape import dshape, DataShapeSyntaxError
label_desc: Use image node_id 3 for calling the TestDataShapeStr obj's underlying member method code with example usage: obj.test_array_str() without return types