code: def test_kind():
      assert serde.flat.clone(A) is A
  
file_path: gluonts/test/core/test_serde_flat.py
imports: from gluonts.core import serde
  from gluonts.core.component import equals
  from gluonts.pydantic import BaseModel
label_desc: Use image node_id 2 for calling a global function with example usage: test_kind() without return types