Image extension Image: CacheCostCalculable Undocumented cacheCost Cost of an image Declaration Swift public var cacheCost: Int { get } Show on GitHub add(to:) How the placeholder should be added to a given image view. Declaration Swift public func add(to imageView: ImageView) Show on GitHub remove(from:) How the placeholder should be removed from a given image view. Declaration Swift public func remove(from imageView: ImageView) Show on GitHub