var reliableEndpoint = new ReliableEndpoint();
reliableEndpoint.ReceiveCallback = ( buffer, size ) =>
{
	// this will be called when the endpoint extracts messages from received packets
	// buffer is byte[] and size is number of bytes in the buffer.
	// do not keep a reference to buffer as it will be pooled after this function returns
};
reliableEndpoint.TransmitCallback = ( buffer, size ) =>
{
	// this will be called when a datagram is ready to be sent across the network.
	// buffer is byte[] and size is number of bytes in the buffer
	// do not keep a reference to the buffer as it will be pooled after this function returns
};

// Send a message through the qos channel
// messageBytes is a byte array, messageSize is number of bytes in the array, and qos type is either:
// QoSType.Reliable - message is guaranteed to arrive and in order.
// QoSType.Unreliable - message is not guaranteed delivery.
// QoSType.UnreliableOrdered - message is not guaranteed delivery, but received messages will be in order.
reliableEndpoint.SendMessage( messageBytes, messageSize, qosType );

// when you receive a datagram, pass the byte array and the number of bytes to ReceivePacket
// this will extract messages from the datagram and call your custom ReceiveCallback with any received messages.
reliableEndpoint.ReceivePacket( packetBytes, packetSize );

// update internal buffers
reliableEndpoint.Update();