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package index
import (	"encoding/json"	"errors")
type Codec struct {}
func Constructor() Codec {	return Codec{}}
type any=interface{}
func replacer(root *TreeNode) any {	if root == nil {		return nil	}
	return []any{root.Val, replacer(root.Left), replacer(root.Right)}}
// Serializes a tree to a single string.func (c *Codec) serialize(root *TreeNode) string {	var b, e = json.Marshal(replacer(root))
	if e != nil {		panic(e)	}	// fmt.Println(string(b))	return string(b)}func reviver(data any) *TreeNode {	// fmt.Println(data)	var vv, ok = data.([]interface{})	//  fmt.Println(vv,ok)	if ok {		// fmt.Println( reflect.TypeOf(vv[0]))		var val, ok = (vv[0]).(float64)		// fmt.Println(val,ok)		if ok {			var p = &TreeNode{				Val:   int(val),				Left:  reviver(vv[1]),				Right: reviver(vv[2])}			return p		} else {
			panic(errors.New("type error float64"))		}
	}	return nil
}
// Deserializes your encoded data to tree.func (c *Codec) deserialize(data string) *TreeNode {	var p any
	var e = json.Unmarshal([]byte(data), &p)
	if e != nil {		panic(e)	}	//   fmt.Println(p)	return reviver(p)}