code: def test_str_numpy_float32(self):
      self.run_test(
          "def str_numpy_float32(s): import numpy; return numpy.float32(s)",
          "0.000012",
          str_numpy_float32=[str],
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import List
  import unittest
label_desc: Use image node_id 48 for calling the TestStr obj's underlying member method code with example usage: obj.test_str_numpy_float32() without return types