Creates & Wraps EventHubReceiver and controls its life cycle
        /// <summary>
        ///  When called Event Hub receivers will be created and connect
        ///  to Event Hub to receive events.
        /// </summary>
        /// <returns></returns>
        public async Task StartAsync()
        {
            // slice the pie according to distribution
            // this partition can get one or more assigned Event Hub Partition ids
            string[] EventHubPartitionIds         = mEventHubClient.GetRuntimeInformation().PartitionIds;
            string[] ResolvedEventHubPartitionIds = mOptions.ResolveAssignedEventHubPartitions(EventHubPartitionIds);

            foreach (var resolvedPartition in ResolvedEventHubPartitionIds)
            {
                var rcver = new EventHubListenerPartitionReceiver(resolvedPartition, mOptions, mConsumerGroup);
                await rcver.StartAsync();

                mReceivers.Add(rcver);
            }
        }
        /// <summary>
        ///  When called Event Hub receivers will be created and connect 
        ///  to Event Hub to receive events.
        /// </summary>
        /// <returns></returns>
        public async Task StartAsync()
        {
            // slice the pie according to distribution
            // this partition can get one or more assigned Event Hub Partition ids
            string[] EventHubPartitionIds = mEventHubClient.GetRuntimeInformation().PartitionIds;
            string[] ResolvedEventHubPartitionIds = mOptions.ResolveAssignedEventHubPartitions(EventHubPartitionIds);

            foreach (var resolvedPartition in ResolvedEventHubPartitionIds)
            {
                var rcver = new EventHubListenerPartitionReceiver(resolvedPartition, mOptions, mConsumerGroup);
                await rcver.StartAsync();
                mReceivers.Add(rcver);
            }

        }