SwiftDocCImageReferenceImageReference.VariantProxyStructureImageReference.VariantProxyA codable proxy value that the image reference uses to serialize information about its asset variants.struct VariantProxyTopicsInitializersinit(from: any Decoder) throwsInstance Propertiesvar svgID: String?The ID for the SVG that should be rendered for this variant.var traits: [String]The traits of this image reference.var url: URLThe URL to the file for this image variant.Instance Methodsfunc encode(to: any Encoder) throws