feat(Guild): Add Guild#maximumBitrate getter.

src/structures/Guild.js

@@ -534,6 +534,30 @@ class Guild extends AnonymousGuild {
     );
   }
 
+  /**
+   * The maximum bitrate available for this guild
+   * @type {number}
+   * @readonly
+   */
+  get maximumBitrate() {
+    if (this.features.includes('VIP_REGIONS')) {
+      return 384000;
+    } 
+
+    switch (PremiumTiers[this.premiumTier]) {
+      case 0:
+        return 96000;
+      case 1:
+        return 128000;
+      case 2:
+        return 256000;
+      case 3:
+        return 384000;
+      default:
+        return 96000;
+    }
+  }
+
   /**
    * Fetches a collection of integrations to this guild.
    * Resolves with a collection mapping integrations by their ids.

typings/index.d.ts

@@ -691,6 +691,7 @@ export class Guild extends AnonymousGuild {
   public readonly widgetChannel: TextChannel | null;
   public widgetChannelId: Snowflake | null;
   public widgetEnabled: boolean | null;
+  public readonly maximumBitrate: number;
   public createTemplate(name: string, description?: string): Promise<GuildTemplate>;
   public delete(): Promise<Guild>;
   public discoverySplashURL(options?: StaticImageURLOptions): string | null;