code: def test_unicode_special():
      str_signature = "complex_function_name(a=5, b='fo', c=9)"
      assert str_signature in str(Signature(complex_function_name))
  
imports: from __future__ import division, print_function
  import re
  import pytest
  from sacred.config.signature import Signature
  from sacred.utils import MissingConfigError
label_desc: Use image node_id 36 for calling a global function with example usage: test_unicode_special() without return types