feat: finishing autocomplete!!

src/types/handler.ts

@@ -1,13 +1,6 @@
-import type {
-    Awaitable,
-    ClientEvents,
-    CommandInteractionOptionResolver,
-    MessageOptions,
-    MessagePayload,
-} from 'discord.js';
+import type { Awaitable, ClientEvents, CommandInteractionOptionResolver } from 'discord.js';
 import type { EventEmitter } from 'events';
 // Anything that can be sent in a `<TextChannel>#send` or `<CommandInteraction>#reply`
-export type possibleOutput<T = string> = T | (MessagePayload & MessageOptions);
 export type Nullish<T> = T | undefined | null;
 // Thanks @cursorsdottsx
 export type ParseType<T> = {
@@ -16,8 +9,14 @@ export type ParseType<T> = {
 
 export type Args = ParseType<{ text: string[]; slash: SlashOptions }>;
 
-export type DiscordEvent = ParseType<{ [K in keyof ClientEvents]: (...args: ClientEvents[K]) => Awaitable<void> }>;
-export type EventEmitterRegister = [emitter: EventEmitter, k: string, cb: (...args: unknown[]) => Awaitable<void>];
+export type DiscordEvent = ParseType<{
+    [K in keyof ClientEvents]: (...args: ClientEvents[K]) => Awaitable<void>;
+}>;
+export type EventEmitterRegister = [
+    emitter: EventEmitter,
+    k: string,
+    cb: (...args: unknown[]) => Awaitable<void>,
+];
 
 export type SlashOptions = Omit<CommandInteractionOptionResolver, 'getMessage' | 'getFocused'>;
 
@@ -25,3 +24,10 @@ export type SlashOptions = Omit<CommandInteractionOptionResolver, 'getMessage' |
 export type Override<T1, T2> = Omit<T1, keyof T2> & T2;
 
 export type DefinitelyDefined<T, K> = T & Override<T, K>;
+export type Expand<T> = T extends object ? { [K in keyof T]: Expand<T[K]> } : T;
+
+type Reconstruct<T> = T extends Omit<infer O, infer _> ? O & Reconstruct<O> : T;
+
+type IsOptional<T> = {
+    [K in keyof T]-?: T[K] extends Required<T>[K] ? false : true;
+};