fix #2318 - add MULTI (uppercase) (#2324)

Author: leibale

packages/client/lib/client/index.ts

@@ -619,13 +619,15 @@ export default class RedisClient<
         return this.#isolationPool.use(fn);
     }
 
-    multi(): RedisClientMultiCommandType<M, F, S> {
+    MULTI(): RedisClientMultiCommandType<M, F, S> {
         return new (this as any).Multi(
             this.multiExecutor.bind(this),
             this.#options?.legacyMode
         );
     }
 
+    multi = this.MULTI;
+
     async multiExecutor(
         commands: Array<RedisMultiQueuedCommand>,
         selectedDB?: number,

packages/client/lib/cluster/index.ts

@@ -224,7 +224,7 @@ export default class RedisCluster<
         }
     }
 
-    multi(routing?: RedisCommandArgument): RedisClusterMultiCommandType<M, F, S> {
+    MULTI(routing?: RedisCommandArgument): RedisClusterMultiCommandType<M, F, S> {
         return new this.#Multi(
             (commands: Array<RedisMultiQueuedCommand>, firstKey?: RedisCommandArgument, chainId?: symbol) => {
                 return this.#execute(
@@ -237,6 +237,8 @@ export default class RedisCluster<
         );
     }
 
+    multi = this.MULTI;
+
     getMasters(): Array<ClusterNode<M, F, S>> {
         return this.#slots.getMasters();
     }