/// <summary>
/// Applies all relevant Conversation related identifies to an activity. This effectivly
/// couples a blank Activity to a conversation.
/// </summary>
/// <param name="activity">The activity to update. Existing values in the Activity will be overwritten.</param>
/// <param name="reference">The ConversationReference from which to pull the relevant conversation information</param>
/// <remarks>
/// This method applies the following values from ConversationReference:
/// ChannelId
/// ServiceUrl
/// Conversation
/// Bot (assigned to the .From property on the Activity)
/// User (assigned to the .Recipient on the Activity)
/// ActivityId (assigned as the ReplyToId on the Activity)
/// </remarks>
public static void ApplyConversationReference(IActivity activity, ConversationReference reference)
{
BotAssert.ActivityNotNull(activity);
BotAssert.ConversationReferenceNotNull(reference);
activity.ChannelId = reference.ChannelId;
activity.ServiceUrl = reference.ServiceUrl;
activity.Conversation = reference.Conversation;
activity.From = reference.Bot;
activity.Recipient = reference.User;
activity.ReplyToId = reference.ActivityId;
}