url data > image

    // 이미지 다운로드 하는 함수(메서드) 구현
 func loadImage() {
        guard let urlString = self.imageURL,
              let url = URL(string: urlString)  else { return }
        
        DispatchQueue.global().async { [weak self] in
// Data(contentsOf: 꼭 비동기 처리해줘야됨.
            guard let data = try? Data(contentsOf: url),   // Data(contentsOf: url) 동기메서드 (직접 비동기처리 필요)
                  let image = UIImage(data: data) else { return }
            
            DispatchQueue.main.async {
                self?.albumImageView.image = image
            }
        }
    }
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apiManager?.loadImage(imageURL: self.imageURL) { [weak self] image in
            DispatchQueue.main.async {
                self?.albumImageView.image = image
            }
        }