vandonr commented on PR #38155:
URL: https://github.com/apache/airflow/pull/38155#issuecomment-2034008773

   > I guess the documentation about listeners 
https://airflow.apache.org/docs/apache-airflow/stable/administration-and-deployment/listeners.html
 - it should have a section on "how to retrieve error" - and yes - ideally it 
should include the relevant excerpt from an example dag
   
   Given the fact that this documentation is very minimalistic for now, what do 
you think about handling this PR as just adding the capability to retrieve the 
error (which would already be somewhat visible to users through 
auto-completion), and I can write an other PR to add the `howto_listen_ti_XXX` 
to the doc you mentioned, which would self-document how to retrieve the error.


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