In this context, we a process which reads specific metrics and produces new ones, we call an augment. Augment's job is to produce additional insights from metrics we already have.
You need to include specific augment inside config under augments array, very similar to Agents.
An example config could look like this:
---
interval: 10
loglevel: DEBUG
riemann:
host: localhost
port: 5555
transport: BlankTransport
augments:
- name: moving average
key: cpu
module: oshino.augments.stats.SimpleMovingAverage
step: 5
tag: "sma"
More configuration info can be found under Config