/// <summary>
        /// Initializes the command.
        /// </summary>
        public override void Init()
        {
            GetListSubscriptionsOptions options = this.OptionalProperties as GetListSubscriptionsOptions;

            if (options == null || options.Cursor <= 0)
            {
                this.RequestParameters.Add("cursor", "-1");
            }
            else
            {
                this.RequestParameters.Add("cursor", options.Cursor.ToString(CultureInfo.CurrentCulture));
            }
        }
        /// <summary>
        /// Initializes a new instance of the <see cref="GetListSubscriptionsCommand"/> class.
        /// </summary>
        /// <param name="requestTokens">The request tokens.</param>
        /// <param name="userName">Name of the user.</param>
        /// <param name="options">The options.</param>
        /// <remarks></remarks>
        public GetListSubscriptionsCommand(OAuthTokens requestTokens, string userName, GetListSubscriptionsOptions options)
            : base(HttpMethod.Get, string.Format("{0}/lists/subscriptions.json", userName), requestTokens, options)
        {
            if (requestTokens == null)
            {
                throw new ArgumentNullException("requestTokens");
            }

            this.DeserializationHandler = TwitterListCollection.Deserialize;
        }