/// <summary>
        /// http://apidocs.mailchimp.com/api/2.0/campaigns/content.php
        /// </summary>
        /// <returns></returns>
        public Task<MailChimpServiceResponse> ContentAsync(string campaignID, ContentOption option)
        {
            var url = Urls.Campaign + "content.json";

            var request = new
            {
                cid = campaignID,
                options = option
            };

            return Execute(url, request);
        }
        /// <summary>
        /// http://apidocs.mailchimp.com/api/2.0/campaigns/create.php
        /// </summary>
        /// <returns></returns>
        public Task<MailChimpServiceResponse> CreateAsync(CampaignType type, ContentOption contentOption)
        {
            var url = Urls.Campaign + "create.json";

            var request = new
            {
                type = type,
                // options = option,
                content = contentOption,
                // segment_opts = segmentOptions,
                // type_opts = typeOptions,
                // auto = autoReponders
            };

            return Execute(url, request);
        }
 public MailChimpServiceResponse Create(CampaignType type, ContentOption contentOption)
 {
     return WaitForServiceResponse(CreateAsync(type, contentOption));
 }