Mark preparer as experimental param

python_modules/libraries/dagster-dbt/dagster_dbt/dbt_project.py

@@ -4,7 +4,7 @@
 from typing import Optional, Sequence, Union
 
 import yaml
-from dagster._annotations import experimental, public
+from dagster._annotations import experimental, experimental_param, public
 from dagster._model import IHaveNew, dagster_model_custom
 from dagster._utils import run_with_concurrent_update_guard
 
@@ -103,6 +103,7 @@ def _prepare_manifest(self, project: "DbtProject") -> None:
 
 
 @experimental
+@experimental_param(param="preparer")
 @dagster_model_custom
 class DbtProject(IHaveNew):
     """Representation of a dbt project and related settings that assist with managing the project preparation.