BundleToEventStream takes a bundle of resources and converts them to an EventStream.

NewReferenceRiskService creates a new risk service backed by the passed in MongoDB instance.

UpdateRiskAssessmentsAndPies removes existing risk assessments from the FHIR server and replaces them with new ones.

ReferenceRiskService is a container for risk service plugins that can handle the details of getting data needed for the plugins, invoking the calculations on the plugins, posting the new results back to the FHIR server, and saving the risk pies to the database.

RiskService is an interface for the functions that must be supported by a risk service used in our reference implementation risk service server.