OptimizelyUserContext

public class OptimizelyUserContext {
    public OptimizelyUserContext(Optimizely optimizely, 
                               string userId,
                               UserAttributes userAttributes, 
                               ForcedDecisionsStore forcedDecisionsStore, 
                               IErrorHandler errorHandler, ILogger logger)
  
    // set an attribute for the user
    public void SetAttribute(string key, object value)

    // get attributes for the user
    public UserAttributes GetAttributes()

    // make a decision about which flag variation the user buckets into for the flag key 
    public OptimizelyDecision Decide(string key, OptimizelyDecideOption[] options)

    // make decisions about which flag variations the user buckets into for flag keys
    public Dictionary<string, OptimizelyDecision> DecideForKeys(string[] keys, OptimizelyDecideOption[] options)

    // make decisions about which flag variations the user buckets into for all flags
    public Dictionary<string, OptimizelyDecision> DecideAll(OptimizelyDecideOption[] options)

    // track user event
    public void TrackEvent(string eventName, EventTags eventTags)

    // sets a forced decision (variationKey) for a given decision context
    public bool SetForcedDecision(OptimizelyDecisionContext context, OptimizelyForcedDecision decision)

    // returns the forced decision (variationKey) for a given decision context
    public OptimizelyForcedDecision GetForcedDecision(OptimizelyDecisionContext context)

    // removes the forced decision (variationKey) for a given decision context
    public bool RemoveForcedDecision(OptimizelyDecisionContext context)

    // removes all the forced decisions (variationKeys) for the user context
    public bool RemoveAllForcedDecisions()

    //
    // The following methods require the Audience targeting with Optimizely Data Platform 
    // integration enabled. See note below code sample. 
    //

    // An array of segment names that the user is qualified for. 
    // The result of **fetchQualifiedSegments()** will be saved here. 
    // Can be null if not properly updated with fetchQualifiedSegments(). 
    // 
    //  You can read and write directly to the qualified segments array. 
    //  This allows for bypassing the remote fetching process from ODP 
    //  or for utilizing your own fetching service.   
    public List<string> GetQualifiedSegments()
    public void SetQualifiedSegments(List<string> qualifiedSegments)

    // Fetch all qualified segments for the user context. 
    // The segments fetched will be saved in the **QualifiedSegments** array
    // and can be accessed any time. 
    public bool FetchQualifiedSegments(List<OdpSegmentOption> segmentOptions = null)

    // Fetch all qualified segments for the user context in a non-blocking manner. 
    // This method will fetch segments in a separate thread and invoke the provided 
    // callback when results are available.
    public Task FetchQualifiedSegments(Action<bool> callback, List<OdpSegmentOption> segmentOptions = null) 

    //  Check is the user qualified for the given segment. 
    public bool IsQualifiedFor(string segment)
}