code: def test_signatures_consistency():
      base_sig = inspect.signature(APIRouter.get)
      for method_name in method_names:
          router_method = getattr(APIRouter, method_name)
          app_method = getattr(FastAPI, method_name)
          router_sig = inspect.signature(router_method)
          app_sig = inspect.signature(app_method)
          param: inspect.Parameter
          for key, param in base_sig.parameters.items():
              router_param: inspect.Parameter = router_sig.parameters[
                  key
              ]
              app_param: inspect.Parameter = app_sig.parameters[key]
              assert param.annotation == router_param.annotation
              assert param.annotation == app_param.annotation
              assert param.default == router_param.default
              assert param.default == app_param.default
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_signatures_consistency() without return types