BasPH opened a new issue, #59609:
URL: https://github.com/apache/airflow/issues/59609
### Description
A user ran this code in Airflow 2:
```python
prev_ti = ti.get_previous_ti(state='success')
# do something with prev_ti.start_date
```
This doesn't work anymore on Airflow 3, since the context gives a
`RuntimeTaskInstance` with limited functionality. I found the business logic:
1. Fetches the previous successful DagRun, and
2. Returns the corresponding task instance (regardless state, which is a bit
odd, but not the point right now).
Step 1 is reproducible in Airflow 3:
```python
@task
def test(ti: RuntimeTaskInstance):
prev_dagrun = ti.get_previous_dagrun(state=DagRunState.SUCCESS)
```
But step 2 is not, there's no way to fetch a specific task from that object.
Can we introduce an Airflow 3-equivalent?
### Use case/motivation
Migrate to Airflow 3
### Related issues
_No response_
### Are you willing to submit a PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [x] I agree to follow this project's [Code of
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
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