Inheritance: System.Dynamic.DynamicObject, IClientProxy
        /// <summary>
        /// Initializes a new instance of the <see cref="HubConnectionContext"/>.
        /// </summary>
        /// <param name="pipelineInvoker">The pipeline invoker.</param>
        /// <param name="connection">The connection.</param>
        /// <param name="hubName">The hub name.</param>
        /// <param name="connectionId">The connection id.</param>
        public HubConnectionContext(IHubPipelineInvoker pipelineInvoker, IConnection connection, string hubName, string connectionId)
            : base(connection, pipelineInvoker, hubName)
        {
            _connectionId = connectionId;

            Caller = new SignalProxy(connection, pipelineInvoker, connectionId, hubName, PrefixHelper.HubConnectionIdPrefix, ListHelper <string> .Empty);
            All    = AllExcept();
            Others = AllExcept(connectionId);
        }