fix: Correct applied tags type (#8641)

* fix: correct applied tags type

* types: this is never a private thread channel

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

packages/discord.js/src/structures/ThreadChannel.js

@@ -323,6 +323,7 @@ class ThreadChannel extends BaseChannel {
    * @property {number} [rateLimitPerUser] The rate limit per user (slowmode) for the thread in seconds
    * @property {boolean} [locked] Whether the thread is locked
    * @property {boolean} [invitable] Whether non-moderators can add other non-moderators to a thread
+   * @property {Snowflake[]} [appliedTags] The tags to apply to the thread
    * @property {string} [reason] Reason for editing the thread
    * <info>Can only be edited on {@link ChannelType.PrivateThread}</info>
    */
@@ -445,9 +446,9 @@ class ThreadChannel extends BaseChannel {
 
   /**
    * Set the applied tags for this channel (only applicable to forum threads)
-   * @param {GuildForumTag[]} appliedTags The tags to set for this channel
+   * @param {Snowflake[]} appliedTags The tags to set for this channel
    * @param {string} [reason] Reason for changing the thread's applied tags
-   * @returns {Promise<GuildForumThreadChannel>}
+   * @returns {Promise<ThreadChannel>}
    */
   setAppliedTags(appliedTags, reason) {
     return this.edit({ appliedTags, reason });

packages/discord.js/typings/index.d.ts

@@ -2608,7 +2608,7 @@ export class ThreadChannel extends TextBasedChannelMixin(BaseChannel, true, [
   public setInvitable(invitable?: boolean, reason?: string): Promise<AnyThreadChannel>;
   public setLocked(locked?: boolean, reason?: string): Promise<AnyThreadChannel>;
   public setName(name: string, reason?: string): Promise<AnyThreadChannel>;
-  public setAppliedTags(appliedTags: GuildForumTag[], reason?: string): Promise<AnyThreadChannel>;
+  public setAppliedTags(appliedTags: Snowflake[], reason?: string): Promise<ThreadChannel>;
   public toString(): ChannelMention;
 }
 
@@ -5654,6 +5654,7 @@ export interface ThreadEditData {
   rateLimitPerUser?: number;
   locked?: boolean;
   invitable?: boolean;
+  appliedTags?: Snowflake[];
   reason?: string;
 }