code: def test_numeric_tower():
      assert validate(np.integer, np.int32(1))
      assert validate(np.number, np.int32(1))
  
file_path: datashader/datashader/datashape/tests/test_user.py
imports: import pytest
  from datashader.datashape.user import issubschema, validate
  from datashader.datashape import dshape
  from datetime import date, time, datetime
  import numpy
label_desc: Use image node_id 3 for calling a global function with example usage: test_numeric_tower() without return types