### Description

A count of datasets that are currently registered/declared in an Airflow deployment.

### Use case/motivation

Would be nice to see how deployments are adopting datasets.

### 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)

"""Makes scheduling decisions for all `dag_runs`"""
        callback_tuples = []
        for dag_run in dag_runs:
            callback_to_run = self._schedule_dag_run(dag_run, session)
            callback_tuples.append((dag_run, callback_to_run))
        guard.commit()
        return callback_tuples
    def _schedule_dag_run(