How to configure UART5 in STM32L496ZG-P?

Hi , i’m using nucleo-l496zg-p board

i’m working on UART communication for that i use some example comes with UARTSerial uart_init(tx,rx pin,bitrate) function defult it’s having PG_8,PG_7 LPUART1 configuration…

even those Uart read is not happening ? as per chip set LPUART1 support full duplex is that used us

but i want to use UART5 how to configure using Mbed os ?

please help me out!!!