Laravel relations, return dialog all participants?

Question

Laravel

protected $fillable = [
        'user_one',
        'user_two',
    ];

    public function participants()
    {
      return  $this->????(User::class); 
    }

Please tell me how to return the first and second user at once?

Answer 1

protected $fillable = [
        'user_one',
        'user_two',
    ];

    public function userOne()
    {
      return  $this->belongsTo(User::class, 'user_one'); 
    }

    public function userTwo()
    {
      return  $this->belongsTo(User::class, 'user_two'); 
    }