export type Updater = (updater: (value: T) => void) => void; export const ROLES = ["system", "user", "assistant"] as const; export type MessageRole = (typeof ROLES)[number]; export interface RequestMessage { role: MessageRole; content: string; } export type DalleSize = "1024x1024" | "1792x1024" | "1024x1792"; export type DalleQuality = "standard" | "hd"; export type DalleStyle = "vivid" | "natural";