how can I make a code with a "flip"

and that it would work correctly the code you see below, I immediately say I'm a beginner in this area

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class playercontrol : MonoBehaviour
 {
 
   public float moveSpeed = 5f;
  
   public Rigidbody2D rb;
 
   Vector2 movement;
   
   void Update()
   {
       movement.x = Input.GetAxisRaw("Horizontal");
       movement.y = Input.GetAxisRaw("Vertical");
   }
   void FixedUpdate()
   {
       rb.MovePosition(rb.position + movement * moveSpeed * Time.fixedDeltaTime);
   }
 
 }