google app engine - Can I use AllocateIDs as "string" ? datastore

Question

I need to assign a unique identifier to each entity in datastore. I've found AllocateIDs but the issue is that it generates integers and I use strings for the keys. Is it safe to convert the integer to a string or there is a risk of collision (i.e. datastore to return me the same integer that I'm currently using as a string key). ?

Answer 1

Waitting for answers