def l1(a,b):
    return abs(a - b).sum()
Performs rolling hot buckets for this index.
dataset/ETHPy150Open bolme/pyvision/src/pyvision/other/distance.py/l1--crossover with--dataset/ETHPy150Open hvandenb/splunk-elasticsearch/search-elasticsearch/bin/splunklib/client.py/Index.roll_hot_buckets