Fix collection attribute typing

tests/Console/ModelsCommand/GenerateMixinCollection/__snapshots__/Test__test__1.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\GenerateMixinCollection\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Collection;
+
+/**
+ * @mixin IdeHelperWithCollection
+ */
+class WithCollection extends Model
+{
+    /**
+     * @return Collection<int, string>
+     */
+    public function getCollectionAttribute(): Collection
+    {
+        return new Collection();
+    }
+
+    /**
+     * @return Collection
+     */
+    public function getCollectionWithoutTemplateAttribute(): Collection
+    {
+        return new Collection();
+    }
+
+    public function getCollectionWithoutDocBlockAttribute(): Collection
+    {
+        return new Collection();
+    }
+}
+<?php
+
+// @formatter:off
+// phpcs:ignoreFile
+/**
+ * A helper file for your Eloquent Models
+ * Copy the phpDocs from this file to the correct Model,
+ * And remove them from this file, to prevent double declarations.
+ *
+ * @author Barry vd. Heuvel <[email protected]>
+ */
+
+
+namespace Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\GenerateMixinCollection\Models{
+/**
+ * Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\GenerateMixinCollection\Models\WithCollection
+ *
+ * @property-read \Illuminate\Support\Collection<int, string> $collection
+ * @property-read \Illuminate\Support\Collection $collection_without_doc_block
+ * @property-read \Illuminate\Support\Collection $collection_without_template
+ * @method static \Illuminate\Database\Eloquent\Builder|WithCollection newModelQuery()
+ * @method static \Illuminate\Database\Eloquent\Builder|WithCollection newQuery()
+ * @method static \Illuminate\Database\Eloquent\Builder|WithCollection query()
+ * @mixin \Eloquent
+ */
+	#[\AllowDynamicProperties]
+	class IdeHelperWithCollection {}
+}
+