fix: change serialize key "key" to "redis"

commands.go

@@ -91,7 +91,7 @@ func structToMap(items interface{}) map[string]interface{} {
 		v = v.Elem()
 	}
 	for i := 0; i < v.NumField(); i++ {
-		tag := v.Field(i).Tag.Get("key")
+		tag := v.Field(i).Tag.Get("redis")
 
 		if tag != "" && v.Field(i).Type.Kind() != reflect.Struct {
 			field := reflectValue.Field(i).Interface()
@@ -1286,8 +1286,8 @@ func (c cmdable) HMGet(ctx context.Context, key string, fields ...string) *Slice
 //   - HSet("myhash", []string{"key1", "value1", "key2", "value2"})
 //   - HSet("myhash", map[string]interface{}{"key1": "value1", "key2": "value2"})
 //
-//	 Playing struct With "key" tag
-//   - type MyHash struct { Key1 string `key:"key1"`; Key2 int `key:"key2"` }
+//	 Playing struct With "redis" tag
+//   - type MyHash struct { Key1 string `redis:"key1"`; Key2 int `redis:"key2"` }
 //   - HSet("myhash", MyHash{"value1", "value2"})
 //
 // Note that it requires Redis v4 for multiple field/value pairs support.

example_test.go

@@ -198,10 +198,10 @@ func ExampleClient_SetEX() {
 }
 
 func ExampleClient_HSet() {
-	// Set "key" tag for hash key
+	// Set "redis" tag for hash key
 	type ExampleUser struct {
-		Name string `key:"name"`
-		Age  int    `key:"age"`
+		Name string `redis:"name"`
+		Age  int    `redis:"age"`
 	}
 
 	items := ExampleUser{"jane", 22}