Interoperable.fromId constructor
Creates an object from an existing ID.
The opposite of Interoperable.new. Used when the platform creats an object and needs a Dart counterpart.
Marked as visibleForTesting because it's generally not what an API user should use. However, it can be used to create custom interoperables.
Implementation
@visibleForTesting
const Interoperable.fromId(this.id);