stateless

Supports substates that inherit behaviors from parents, enabling complex state hierarchies as shown in the phone call example with OnHold under Connected.

Allows state to be stored externally via delegate functions, facilitating seamless use with ORMs or databases, as demonstrated in the NewStateMachineWithExternalStorage method.

Built for safe use in multi-goroutine environments, ensuring reliable state transitions in concurrent applications without additional locking.

Can generate DOT graph representations of state machines, making it easy to create up-to-date diagrams for documentation, as illustrated with the phone call graph.