IEnumerator not working

whenever i try put a name for the ienumerator it dosn’t allow it.
here is the code which is a work in progress:

using System.Collections;
using UnityEngine;

public class Reposition : MonoBehaviour
GameObject Weapon;
public Transform Myself;
public Vector3 originalPos;
void Start()
Weapon = GameObject.FindGameObjectWithTag(“allguns”);

public IEnumerator Reload()