how to run UDiffPackagesCommandlet correctlly?

i need to write an diff tools for unreal asset, and i found the commandlet UDiffPackagesCommandlet, but i cannot run it correctly.
i googled and cannot found any document introduction about this commandlet, any suggestions are appreciated.

According to the documentation, UDiffPackagesCommandlet is depreciated as of at least 4.26 and redefined as UDEPRECATED_DiffPackagesCommandlet. Use with caution. As far as how to use them see UCommandlet | Unreal Engine Documentation.