Please provide asynchronous APIs for reading RSSI value of connected BLE devices

Please provide asynchronous APIs for reading RSSI value of connected BLE devices. This has to be available as part of QLowEnergyController (for Central role). Note that while scanning the RSSI value is available as part of QBluetoothDeviceInfo, but once connected App doesn't receive device info and moreover app may choose to stop scanning after being connected to a peripheral. The Controller must have the APIs to read RSSI.

This should be a basic essential feature which must be available.

Here are the native APIs for Android and iOS:

Android support: https://developer.android.com/reference/android/bluetooth/BluetoothGatt#readRemoteRssi()

iOS support: https://developer.apple.com/documentation/corebluetooth/cbperipheral/1518869-rssi