In a nutshell this service maps incoming contexts into [OPA input documents](https://www.openpolicyagent.org/docs/latest/philosophy/#the-opa-document-model) and asks OPA to compute a judgement allowing, restricting or forbidding actions under given input context.
From the service's point of view a **ruleset id** is a path to OPA document that define a subdocument named `judgement` with a rudimentary schema. See https://github.com/rbkmoney/bouncer-policies#authoring for more detailed information.
