docstr: Check np.float32 conversion. 
docstr_tok: ["Check","np.float32","conversion","."]
code: def test_set_of_float32(self):
      """Check np.float32 conversion."""
      code = """
  def set_of_float32(l):
      return { _ / 2 for _ in l}"""
      self.run_test(
          code,
          {np.float32(1), np.float32(2)},
          set_of_float32=[Set[np.float32]],
      )
  
imports: import numpy
  import unittest
  from pythran.typing import *
  from pythran.tests import TestEnv
label_desc: Use image node_id 10 for calling the TestConversion obj's underlying member method code with example usage: obj.test_set_of_float32() without return types