uranusjr commented on a change in pull request #20795:
URL: https://github.com/apache/airflow/pull/20795#discussion_r783675997



##########
File path: airflow/models/taskmixin.py
##########
@@ -114,6 +115,14 @@ class DAGNode(DependencyMixin, metaclass=ABCMeta):
     def node_id(self) -> str:
         raise NotImplementedError()
 
+    @property
+    def label(self) -> Optional[str]:
+        tg: Optional["TaskGroup"] = getattr(self, 'task_group', None)
+        if tg and tg.node_id and tg.prefix_group_id:
+            # "task_group_id.task_id" -> "task_id"
+            return self.node_id[len(tg.node_id) + 1 :]

Review comment:
       ```suggestion
               return self.node_id.split(".", 1)[-1]
   ```




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