import Foundation struct AttachmentResponse: Codable, Hashable { let title: String? let imageURL: URL? let audioURL: URL? let description: String? let dimensions: Dimensions? enum CodingKeys: String, CodingKey { case imageURL = "image_url" case audioURL = "audio_url" case title case description case dimensions = "image_dimensions" } struct Dimensions: Codable, Hashable { let width: Double let height: Double } }