code: def test_serialize_tuples():
      t = (1, "two")
      assert restore(flatten(t)) == t
      assert isinstance(restore(flatten(t)), tuple)
  
file_path: sacred/tests/test_serializer.py
imports: import pytest
  from sacred.serializer import flatten, restore
  import sacred.optional
label_desc: Use image node_id 5 for calling a global function with example usage: test_serialize_tuples() without return types