Add support for CLUSTER MYSHARDID command (#2530)

* feat: add support for CLUSTER MYSHARDID command

Co-authored-by: Anuragkillswitch <70265851+Anuragkillswitch@users.noreply.github.com>

Author: SoulPancake

cluster_test.go

@@ -746,6 +746,12 @@ var _ = Describe("ClusterClient", func() {
 			})
 		})
 
+		It("should CLUSTER MYSHARDID", func() {
+			shardID, err := client.ClusterMyShardID(ctx).Result()
+			Expect(err).NotTo(HaveOccurred())
+			Expect(shardID).ToNot(BeEmpty())
+		})
+
 		It("should CLUSTER NODES", func() {
 			res, err := client.ClusterNodes(ctx).Result()
 			Expect(err).NotTo(HaveOccurred())

commands.go

@@ -460,6 +460,7 @@ type Cmdable interface {
 	PubSubShardChannels(ctx context.Context, pattern string) *StringSliceCmd
 	PubSubShardNumSub(ctx context.Context, channels ...string) *MapStringIntCmd
 
+	ClusterMyShardID(ctx context.Context) *StringCmd
 	ClusterSlots(ctx context.Context) *ClusterSlotsCmd
 	ClusterShards(ctx context.Context) *ClusterShardsCmd
 	ClusterLinks(ctx context.Context) *ClusterLinksCmd
@@ -3584,6 +3585,12 @@ func (c cmdable) PubSubNumPat(ctx context.Context) *IntCmd {
 
 //------------------------------------------------------------------------------
 
+func (c cmdable) ClusterMyShardID(ctx context.Context) *StringCmd {
+	cmd := NewStringCmd(ctx, "cluster", "myshardid")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
 func (c cmdable) ClusterSlots(ctx context.Context) *ClusterSlotsCmd {
 	cmd := NewClusterSlotsCmd(ctx, "cluster", "slots")
 	_ = c(ctx, cmd)