fn new_csv_stream(
_ctx: &CreateScanPlanContext,
config: &ScanPlanConfig<'_>,
format: &CsvFormat,
) -> Result<SendableRecordBatchStream>
fn new_csv_stream(
_ctx: &CreateScanPlanContext,
config: &ScanPlanConfig<'_>,
format: &CsvFormat,
) -> Result<SendableRecordBatchStream>