def get_all_transitions(self, instance_cls):
        """
        Returns [(source, target, name, method)] for all field transitions
        """
        transitions = self.transitions[instance_cls]

        for name, transition in transitions.items():
            meta = transition._django_fsm

            for transition in meta.transitions.values():
                yield transition

        Returns [(source, target, name, method)] for all field transitions
        
django_fsm/__init__.py