def sequential_id(k, identifier):
    key = _key(k)
    return int(monotonic_zadd(keys=[key], args=[identifier]))
Search through all photos for a specific user and return a feed.
dataset/ETHPy150Open seatgeek/sixpack/sixpack/db.py/sequential_id--crossover with--dataset/ETHPy150Open acil-bwh/SlicerCIP/Scripted/attic/PicasaSnap/gdata/photos/service.py/PhotosService.SearchUserPhotos