first work on To Do Lists

app/Models/ToDo.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class ToDo extends Model
+{
+    protected $guarded = [];
+
+    protected $dates = ['checked_at'];
+
+    public function toDoList() :BelongsTo
+    {
+        return $this->belongsTo(ToDoList::class);
+    }
+}