/// <summary>
        /// Gets the sender entity usage percentage.
        /// </summary>
        /// <returns>Task&lt;System.Double&gt;.</returns>
        /// <exception cref="InvalidOperationException">Sender entity has not been configured</exception>
        /// <exception cref="System.InvalidOperationException">Sender entity has not been configured</exception>
        public async Task <decimal> GetSenderEntityUsagePercentage()
        {
            if (SenderInfo == null)
            {
                throw new InvalidOperationException("Sender entity has not been configured");
            }

            if (SenderInfo.EntityType == EntityType.Queue)
            {
                return(await ManagerClient.GetQueueUsagePercentage(SenderInfo.EntityName, SenderInfo.MaxEntitySizeBytes));
            }
            else
            {
                return(await ManagerClient.GetTopicUsagePercentage(SenderInfo.EntityName, SenderInfo.MaxEntitySizeBytes));
            }
        }