hainan/app/Models/User.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;

class User extends BaseModel
{
    use HasFactory;
	protected $guarded = ['id', 'created_at', 'updated_at'];

	public function agent()
	{
		return $this->belongsTo(Agent::class);
	}
}