ImageBatchLoaderHandler.swift

final class ImageBatchLoaderHandler: ImageBatchLoaderDelegate {
  var didLoadBatch: @MainActor ([UIImage]) -> Void = { _ in }
    
  func imageLoader(_ imageLoader: ImageBatchLoader, didLoadBatch batch: [UIImage]) {
    print("isMainThread", Thread.isMainThread, #function)
    Task {
      await didLoadBatch(batch)
    }
  }
}