Adds the specified animation block to the animator.
- iOS 10.0+
- Mac Catalyst 13.0+
- tvOS 10.0+
A block containing the animations to add to the animator object. This block has no return value and takes no parameters.
Use this method to add new animation blocks to your custom animator object. The animations in the specified block should run alongside any previously configured animations, starting at the current time and finishing at the same time as any original animations. Your implementation must be able to handle multiple calls to this method.