code: def test_trailing_comma_arg0(self):
      code = """
  #      pythran export foo(int,)
  def foo(n): return n
              """
      self.assertTrue(pythran.spec_parser(code))
  
imports: import unittest
  import pythran
  import os.path
label_desc: Use image node_id 16 for calling the TestSpecParser obj's underlying member method code with example usage: obj.test_trailing_comma_arg0() without return types