feat: add support for fetching multiple guilds (#5472)

Co-authored-by: SpaceEEC <spaceeec@yahoo.com>
Co-authored-by: Noel <icrawltogo@gmail.com>

src/structures/OAuth2Guild.js

@@ -0,0 +1,28 @@
+'use strict';
+
+const BaseGuild = require('./BaseGuild');
+const Permissions = require('../util/Permissions');
+
+/**
+ * A partial guild received when using {@link GuildManager#fetch} to fetch multiple guilds.
+ * @extends {BaseGuild}
+ */
+class OAuth2Guild extends BaseGuild {
+  constructor(client, data) {
+    super(client, data);
+
+    /**
+     * Whether the client user is the owner of the guild
+     * @type {boolean}
+     */
+    this.owner = data.owner;
+
+    /**
+     * The permissions that the client user has in this guild
+     * @type {Readonly<Permissions>}
+     */
+    this.permissions = new Permissions(BigInt(data.permissions)).freeze();
+  }
+}
+
+module.exports = OAuth2Guild;