hwo to check if something is in a sphere in unity code example

Example: hwo to check if something is in a sphere in unity

public class Test : MonoBehaviour 
 {
 	public GameObject ThePlayer;
    public float Radius;
    
    void Update()
    {
    	float dist = Vector3.Distance(ThePlayer.transform.position, transform.position);
        if (dist < Radius)
        {
        	// the player is within radius distance of this object
        }
    }
 }