/// <summary>
        /// Check the queue entity exists.
        /// </summary>
        /// <param name="entityName">The entity name to check exists.</param>
        /// <returns>Boolean true if exists and false if not.</returns>
        public async Task <bool> EntityExists(string entityName)
        {
            var isTopic = await ManagerClient.IsTopic(entityName);

            if (isTopic)
            {
                return(await ManagerClient.TopicExistsAsync(entityName));
            }
            else
            {
                return(await ManagerClient.QueueExistsAsync(entityName));
            }
        }