code: def test_valid_numpy_version():
      # Verify that the numpy version is a valid one (no .post suffix or other
      # nonsense).  See gh-6431 for an issue caused by an invalid version.
      version_pattern = (
          r"^[0-9]+\.[0-9]+\.[0-9]+(a[0-9]|b[0-9]|rc[0-9])?"
      )
      dev_suffix = r"(\.dev[0-9]+(\+git[0-9]+\.[0-9a-f]+)?)?"
      res = re.match(version_pattern + dev_suffix + "$", np.__version__)
  
      assert_(res is not None, np.__version__)
  
imports: import re
  import numpy
  from numpy.testing import assert_
label_desc: Use image node_id 1 for calling a global function with example usage: test_valid_numpy_version() without return types