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Serialize ExternalTaskMarker dag dependency #44879

@pierrejeambrun

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@pierrejeambrun

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Related to: #42367

Final Goal:
SerializedDagModel.get_dag_dependencies() is not returning linked objects related to ExternalTaskMarker. This is useful for the front-end to be able to display that a specific dag /task depends on an external task.

Consideration:

  • This impacts how we serialize dags, especially the dag_dependencies fields.

Committer

  • I acknowledge that I am a maintainer/committer of the Apache Airflow project.

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