fix PHPStan error; unknown method pull()

Author: Treggats

phpstan-baseline.neon

@@ -10,11 +10,6 @@ parameters:
 			count: 1
 			path: src/Eloquent/Model.php
 
-		-
-			message: "#^Call to an undefined method Illuminate\\\\Database\\\\Eloquent\\\\Builder\\|Illuminate\\\\Database\\\\Eloquent\\\\Model\\:\\:pull\\(\\)\\.$#"
-			count: 1
-			path: src/Relations/BelongsToMany.php
-
 		-
 			message: "#^Cannot call method modelKeys\\(\\) on array\\|Illuminate\\\\Support\\\\Collection\\.$#"
 			count: 1

src/Relations/BelongsToMany.php

@@ -15,6 +15,7 @@
 use function array_map;
 use function array_merge;
 use function array_values;
+use function assert;
 use function count;
 use function is_array;
 use function is_numeric;
@@ -230,6 +231,8 @@ public function detach($ids = [], $touch = true)
         }
 
         // Remove the relation to the parent.
+        assert($this->parent instanceof \MongoDB\Laravel\Eloquent\Model);
+        assert($query instanceof \MongoDB\Laravel\Eloquent\Model);
         $query->pull($this->foreignPivotKey, $this->parent->getKey());
 
         if ($touch) {