kaxil commented on code in PR #44972:
URL: https://github.com/apache/airflow/pull/44972#discussion_r1890627660
##########
airflow/serialization/serialized_objects.py:
##########
@@ -1870,3 +1871,55 @@ def _has_kubernetes() -> bool:
except ImportError:
HAS_KUBERNETES = False
return HAS_KUBERNETES
+
+
+class LazyDeserializedDAG(pydantic.BaseModel):
+ """
+ Lazily build information from the serialized DAG structure.
+
+ An object that will present "enough" of the DAG like interface to update
DAG db models etc, without having
+ to deserialize the full DAG and Task hierarchy.
+ """
+
+ data: dict
+
+ NULLABLE_PROPERTIES: ClassVar[set[str]] = {
+ "is_paused_upon_creation",
+ "owner",
+ "dag_display_name",
+ "description",
+ "max_active_tasks",
+ "max_active_runs",
+ "max_consecutive_failed_dag_runs",
+ "owner_links",
+ }
+
+ @property
+ def hash(self) -> str:
+ from airflow.models.serialized_dag import SerializedDagModel
+
+ return SerializedDagModel.hash(self.data)
+
+ def next_dagrun_info(self, last):
Review Comment:
`typing.NoReturn` :)
https://docs.python.org/3/library/typing.html#typing.NoReturn
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