INA260: Implementing INA260 for High Voltage

Hi all, I am currently implementing the INA260 for voltage and current measurement on a low voltage line (~12V). I want to take this implementation and modify it to support sensing on a high voltage line (~500V). What is the best way to do this? I found some documents on implementing the INA138 for high voltage sensing, but I would like to use the INA260 due to its voltage sensing capability, its internal ADC, and I2C bus.

Thanks!