Is there a way to set up downsampling option when fetching an image with SDWebImage?

This is how I set images to UIImageView from a web url:

import UIKit

extension UIImageView {
    private var storage: Storageable {
        Assembler.shared.resolve(Storageable.self)!
    }

    private var imageDownloader: ImageDownloaderable {
        Assembler.shared.resolve(ImageDownloaderable.self)!
    }

    // MARK: - Internal

    func setImage(with url: URL) {
        downloadImage(with: url) { [weak self] image in
            self?.image = image
        }
    }

    func downloadImage(with url: URL, completion: @escaping ImageHandler) {
        imageDownloader.setAuthorization(withToken: storage.bearerToken)
        sd_setImage(with: url, placeholderImage: nil,
                    options: [.allowInvalidSSLCertificates, .avoidAutoSetImage]) { image, _, _, _ in
            completion(image)
        }
    }
}

How do I tell SDWebImage library to downsample an image to specific size, to reduce memory usage. Is it possible?

From SDWebImage's Wiki on Github, you can use Image Transformers to do some image processing on the downloaded image.

let transformer = SDImageResizingTransformer(size: CGSize(300, 300), scaleMode: .fill)
let imageView: UIImageView
imageView.sd_setImage(with: url, placeholderImage: nil, context: [.imageTransformer: transformer])