feat: Backport reason on pin and unpin

src/managers/MessageManager.js

@@ -156,25 +156,27 @@ class MessageManager extends CachedManager {
   /**
    * Pins a message to the channel's pinned messages, even if it's not cached.
    * @param {MessageResolvable} message The message to pin
+   * @param {string} [reason] Reason for pinning
    * @returns {Promise<void>}
    */
-  async pin(message) {
+  async pin(message, reason) {
     message = this.resolveId(message);
     if (!message) throw new TypeError('INVALID_TYPE', 'message', 'MessageResolvable');
 
-    await this.client.api.channels(this.channel.id).pins(message).put();
+    await this.client.api.channels(this.channel.id).pins(message).put({ reason });
   }
 
   /**
    * Unpins a message from the channel's pinned messages, even if it's not cached.
    * @param {MessageResolvable} message The message to unpin
+   * @param {string} [reason] Reason for unpinning
    * @returns {Promise<void>}
    */
-  async unpin(message) {
+  async unpin(message, reason) {
     message = this.resolveId(message);
     if (!message) throw new TypeError('INVALID_TYPE', 'message', 'MessageResolvable');
 
-    await this.client.api.channels(this.channel.id).pins(message).delete();
+    await this.client.api.channels(this.channel.id).pins(message).delete({ reason });
   }
 
   /**

src/structures/Message.js

@@ -720,31 +720,33 @@ class Message extends Base {
 
   /**
    * Pins this message to the channel's pinned messages.
+   * @param {string} [reason] Reason for pinning
    * @returns {Promise<Message>}
    * @example
    * // Pin a message
    * message.pin()
    *   .then(console.log)
    *   .catch(console.error)
    */
-  async pin() {
+  async pin(reason) {
     if (!this.channel) throw new Error('CHANNEL_NOT_CACHED');
-    await this.channel.messages.pin(this.id);
+    await this.channel.messages.pin(this.id, reason);
     return this;
   }
 
   /**
    * Unpins this message from the channel's pinned messages.
+   * @param {string} [reason] Reason for unpinning
    * @returns {Promise<Message>}
    * @example
    * // Unpin a message
    * message.unpin()
    *   .then(console.log)
    *   .catch(console.error)
    */
-  async unpin() {
+  async unpin(reason) {
     if (!this.channel) throw new Error('CHANNEL_NOT_CACHED');
-    await this.channel.messages.unpin(this.id);
+    await this.channel.messages.unpin(this.id, reason);
     return this;
   }
 

typings/index.d.ts

@@ -1545,7 +1545,7 @@ export class Message<Cached extends boolean = boolean> extends Base {
   public fetchWebhook(): Promise<Webhook>;
   public crosspost(): Promise<Message>;
   public fetch(force?: boolean): Promise<Message>;
-  public pin(): Promise<Message>;
+  public pin(reason?: string): Promise<Message>;
   public react(emoji: EmojiIdentifierResolvable): Promise<MessageReaction>;
   public removeAttachments(): Promise<Message>;
   public reply(options: string | MessagePayload | ReplyMessageOptions): Promise<Message>;
@@ -1554,7 +1554,7 @@ export class Message<Cached extends boolean = boolean> extends Base {
   public suppressEmbeds(suppress?: boolean): Promise<Message>;
   public toJSON(): unknown;
   public toString(): string;
-  public unpin(): Promise<Message>;
+  public unpin(reason?: string): Promise<Message>;
   public inGuild(): this is Message<true> & this;
 }
 
@@ -3173,8 +3173,8 @@ export class MessageManager extends CachedManager<Snowflake, Message, MessageRes
   ): Promise<Collection<Snowflake, Message>>;
   public fetchPinned(cache?: boolean): Promise<Collection<Snowflake, Message>>;
   public react(message: MessageResolvable, emoji: EmojiIdentifierResolvable): Promise<void>;
-  public pin(message: MessageResolvable): Promise<void>;
-  public unpin(message: MessageResolvable): Promise<void>;
+  public pin(message: MessageResolvable, reason?: string): Promise<void>;
+  public unpin(message: MessageResolvable, reason?: string): Promise<void>;
 }
 
 export class PermissionOverwriteManager extends CachedManager<