getNextStep method

(TutorialStep?, int?) getNextStep(
  1. int? previousIndex
)

Implementation

(TutorialStep?, int?) getNextStep(int? previousIndex) {
  (TutorialStep?, int?) next = _nextStep(previousIndex);
  TutorialStep? nextStep = next.$1;
  int? nextIndex = next.$2;
  return (nextStep, nextIndex);
}