/// <summary>
/// Returns the stored data for the requested active experiment, for testing purposes only.
/// </summary>
/// <param name="experimentId">The id of the experiment to look for.</param>
/// <exception cref="System.NullReferenceException">Thrown when there is no data for the experiment.</exception>
/// <returns>The `RecordedExperimentData` for the experiment</returns>
public RecordedExperimentData TestGetExperimentData(string experimentId)
{
Dispatchers.AssertInTestingMode();
string rawData = LibGleanFFI.glean_experiment_test_get_data(experimentId).AsString();
return(RecordedExperimentData.FromJsonString(rawData));
}