BoxKite.Twitter.DirectMessageExtensions.SendDirectMessage C# (CSharp) Метод

        public async static Task<DirectMessage> SendDirectMessage(this IUserSession session, string screenName, string text)
        {
            var parameters = new TwitterParametersCollection();
            parameters.Create(include_entities:true, screen_name:screenName, text:text.TrimAndTruncate(140));
            if (parameters.EnsureAllArePresent(new [] {"screen_name", "text"}).IsFalse())
            {
                return session.MapParameterError<DirectMessage>(
                        "Either screen_name and text required");
            }

            return await session.PostAsync(TwitterApi.Resolve("/1.1/direct_messages/new.json"), parameters)
                          .ContinueWith(c => c.MapToSingle<DirectMessage>());
        }