test/app/Http/Models/WitnessProjectIntroduce.php

<?php

namespace App\Http\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class WitnessProjectIntroduce extends Model
{
    use SoftDeletes;
    protected $primaryKey = 'id';
    protected $table = 'witness_project_introduce';

}