HRV data

I’ve successfully implemented AWS Lambda to retrieve and store various health metrics—such as heart rate and respiration—into Timestream, and everything is functioning well on that end. However, I'm currently facing an issue with accessing HRV (Heart Rate Variability) data.

Could you please provide the exact name/identifier and the data format in which HRV is delivered? This information would be extremely helpful in resolving the issue and ensuring the HRV data is properly captured and stored.

Thank you in advance for your support.