fix: add bytes in scan struct example

Signed-off-by: rfyiamcool <rfyiamcool@163.com>

example/scan-struct/main.go

@@ -11,6 +11,7 @@ import (
 type Model struct {
 	Str1    string   `redis:"str1"`
 	Str2    string   `redis:"str2"`
+	Bytes1  []byte   `redis:"bytes1"`
 	Int     int      `redis:"int"`
 	Bool    bool     `redis:"bool"`
 	Ignored struct{} `redis:"-"`
@@ -22,13 +23,15 @@ func main() {
 	rdb := redis.NewClient(&redis.Options{
 		Addr: ":6379",
 	})
+	_ = rdb.FlushDB(ctx).Err()
 
 	// Set some fields.
 	if _, err := rdb.Pipelined(ctx, func(rdb redis.Pipeliner) error {
 		rdb.HSet(ctx, "key", "str1", "hello")
 		rdb.HSet(ctx, "key", "str2", "world")
 		rdb.HSet(ctx, "key", "int", 123)
 		rdb.HSet(ctx, "key", "bool", 1)
+		rdb.HSet(ctx, "key", "bytes1", []byte("this is bytes !"))
 		return nil
 	}); err != nil {
 		panic(err)
@@ -47,5 +50,29 @@ func main() {
 	}
 
 	spew.Dump(model1)
+	// Output:
+	// (main.Model) {
+	// 	Str1: (string) (len=5) "hello",
+	// 	Str2: (string) (len=5) "world",
+	// 	Bytes1: ([]uint8) (len=15 cap=16) {
+	// 	 00000000  74 68 69 73 20 69 73 20  62 79 74 65 73 20 21     |this is bytes !|
+	// 	},
+	// 	Int: (int) 123,
+	// 	Bool: (bool) true,
+	// 	Ignored: (struct {}) {
+	// 	}
+	// }
+
 	spew.Dump(model2)
+	// Output:
+	// (main.Model) {
+	// 	Str1: (string) (len=5) "hello",
+	// 	Str2: (string) "",
+	// 	Bytes1: ([]uint8) <nil>,
+	// 	Int: (int) 123,
+	// 	Bool: (bool) false,
+	// 	Ignored: (struct {}) {
+	// 	}
+	// }
+
 }