Type Alias: EasingName

type EasingName =
  `${'linear' | 'quad' | 'cubic' | 'sin' | 'exp' | 'circle' | 'elastic' | 'back' | 'bounce'}${'' | '-in' | '-out' | '-in-out'}`;

Plotly's easing names (layout.transition.easing, animate's transition.easing).