in src/Event/CustomEvent.cs [723:739]
private static void AddDict<T, S>(Dictionary<T, S> srcDict, Dictionary<T, S> dstDict)
{
if(srcDict == null)
{
throw new ArgumentNullException("srcDict");
}
if (dstDict == null)
{
throw new ArgumentNullException("dstDict");
}
foreach (var item in srcDict)
{
dstDict[item.Key] = item.Value;
}
}