ConcretePacket is the struct that implements the IPacket interface .

IData is the interface that defines the methods that a data object should implement.

IPacket is the interface that defines the methods that a message packet should implement Structure of the packet is as follows: - Header: A map of key-value pairs that can be used to store metadata about the packet - Attributes: A map of key-value pairs that can be used to store context and unique information - Data: The actual data that the packet is carrying.