description

# Animation constructor

Animation([

1. AnimationEffectReadOnly? effect,
2. AnimationTimeline? timeline

])

## Implementation

    factory Animation([
      AnimationEffectReadOnly? effect,
      AnimationTimeline? timeline,
    ]) {
      if (timeline != null) {
        return Animation._create_1(effect, timeline);
      }
      if (effect != null) {
        return Animation._create_2(effect);
      }
      return Animation._create_3();
    }