lastStepRepeats property
At one point, Nodes were going to be able to be activated multiple times, changing the current step and potentially piling on multiple effects from the previously activated steps. This property would indicate if the last step could be activated multiple times. This is not currently used, but it isn't out of the question that this could end up being used again in a theoretical future.
Implementation
@JsonKey(name:'lastStepRepeats')
bool? lastStepRepeats;