class_docstr: Check complex support in Pythran. 
class_docstr_tok: ["Check","complex","support","in","Pythran","."]
code: def test_complex128_to_complex64(self):
      self.run_test(
          """
              import numpy as np
              def complex128_to_complex64(a):
                  return np.complex64(a)""",
          complex(-4.4, 4.4),
          complex128_to_complex64=[complex],
      )
  
imports: import numpy
  from pythran.config import cfg
  from pythran.tests import TestEnv
  from pythran.typing import NDArray
  import unittest
label_desc: Use image node_id 2 for calling the TestComplex obj's underlying member method code with example usage: obj.test_complex128_to_complex64() without return types