Hello all,

I've been searching for the better part of a day without finding much 
information on this topic, so I figured I'd go ahead and ask here.

I'm looking for a way to receive notifications of changes to individual 
Protobuf message instances. I have an application that would like to 
persist the changes of a message through time (event sourcing), and it 
would make things extremely clean if there were some way to accomplish this.

If I were working in C++, it seems that there would at least be the 
possibility of using the message differencer for this (I could copy a 
message before applying some logic to it then run the differencer on the 
the copy and the message after the modification), but the code that I 
currently have is in Python.

I understand that this is probably a very specific use case, but is there 
any way for me to achieve something like this?

Thanks,
Jordan

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