Abhijith Mundanad Narayanan

Error when a report is run without reference_data even though it is optional

3

**Issue**: When generating a report with `DataQualityPreset()` metric, the `reference_data` is optional as described [here](https://docs.evidentlyai.com/presets/data-quality#how-it-works-1). However, calling this method without `reference_data` leads to this error: ``` data_quality_report.run(current_data=current_data,column_mapping=column_mapping) --------------------------------------------------------------------------- TypeError Traceback...