How to use lookup filters to sort results in PythonEve using PyMongo

Multi tool use


How to use lookup filters to sort results in PythonEve using PyMongo
In PythonEve using MongoDB, how can I get (internally) the last item created in a given collection?
Looking into eve's mongo module find_one_raw
looks like the way to go. I am trying something like the following without success:
find_one_raw
last = app.data.find_one_raw('aresource',**{"_created": {"sort": 1}})
last = app.data.find_one_raw('aresource',**{"_created": {"sort": 1}})
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