CreateChargingKey creates & returns ChargingKey from a given policy.

GetFlowDescriptionFromFlowString returns a proto.FlowDescription from a IPFilterRule string passed in the Flow-Description AVP.

NewRedisPolicyDBClient creates a new RedisPolicyDBClient.

ChargingKey defines a reporting key for a charging rule the key could be the policy RatingGroup or RatingGroup and Service Identity combo.

RedisPolicyDBClient is a policy client that loads policies from Redis.

PolicyDBClient defines interactions with the stored policy rules.