EasingDefinition
The union of named easing keywords, a `BezierDefinition`, and a `CustomEasingFunction` accepted wherever a transform needs an easing curve.
type EasingDefinition = CustomEasingFunction | BezierDefinition | "linear" | "easeIn" | "easeOut" | "easeInOut" | "circIn" | "circOut" | "circInOut" | "backIn" | "backOut" | "backInOut" | "anticipate";For CustomEasingFunction, see CustomEasingFunction.
For BezierDefinition, see BezierDefinition.