Since mbed-os 6.0 added support for the target TARGET_NUCLEO_L452RE_P, PIO will automatically get that support once it updates to the newest mbed-os. This is being discussed in Future of mbed on PIO.
Since mbed-os 6.0 added support for the target TARGET_NUCLEO_L452RE_P, PIO will automatically get that support once it updates to the newest mbed-os. This is being discussed in Future of mbed on PIO.