OpenTween.Twitter.UploadMedia C# (CSharp) Method

        public async Task<long> UploadMedia(IMediaItem item)
        {
            this.CheckAccountState();

            var response = await this.Api.MediaUpload(item)
                .ConfigureAwait(false);

            var media = await response.LoadJsonAsync()
                .ConfigureAwait(false);

            return media.MediaId;
        }