komjera opened a new issue, #62945:
URL: https://github.com/apache/airflow/issues/62945
### Apache Airflow version
3.1.7
### If "Other Airflow 3 version" selected, which one?
_No response_
### What happened?
Received warning
```log
Cannot infer multiple_outputs for TaskFlow function 'dataframe_task' with
forward type references that are not imported. (Error was name 'DataFrame' is
not defined) category=UserWarning
```
when using quotes when typehinting with a type that is only imported during
TYPE_CHECKING.
### What you think should happen instead?
There should be no warning
### How to reproduce
```py
from typing import TYPE_CHECKING
from airflow.sdk import dag, task
if TYPE_CHECKING:
from pandas import DataFrame
@task(task_id="df_task")
def dataframe_task() -> "DataFrame":
import pandas as pd
df = pd.DataFrame({"a": [1, 2, 3]})
return df
@dag()
def simple_dag():
_ = dataframe_task()
simple_dag()
```
### Operating System
Debian GNU/Linux 12 (bookworm)
### Versions of Apache Airflow Providers
apache-airflow-providers-standard==1.11.0
apache-airflow-providers-common-sql==1.30.4
apache-airflow-providers-microsoft-azure==12.10.3
apache-airflow-providers-microsoft-mssql==4.4.1
### Deployment
Astronomer
### Deployment details
Running locally using astro CLI and image
astrocrpublic.azurecr.io/runtime:3.1-13-python-3.12
### Anything else?
_No response_
### Are you willing to submit 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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