ramitkataria commented on code in PR #57215:
URL: https://github.com/apache/airflow/pull/57215#discussion_r2467530449


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airflow-core/src/airflow/models/callback.py:
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@@ -131,26 +136,42 @@ class Callback(Base):
     trigger_id: Mapped[int] = mapped_column(Integer, ForeignKey("trigger.id"), 
nullable=True)
     trigger = relationship("Trigger", back_populates="callback", uselist=False)
 
-    def __init__(self, priority_weight: int = 1):
+    def __init__(self, priority_weight: int = 1, prefix: str = "", **kwargs):
         self.state = CallbackState.PENDING
         self.priority_weight = priority_weight
+        self.data = kwargs  # kwargs can be used to include additional info in 
metric tags

Review Comment:
   `data` is used by the subclasses to store additional metadata that is not 
covered by the columns in the base class. This would include things like `path` 
and `kwargs`. It also includes `prefix`



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