Model firstOrNew(array $attributes)

static void saved(Closure|string $callback, int $priority)

array initRelation(array $models, string $relation) Initialize the relation

Collection getEager()

mixed __call(string $method, array $parameters) Handle dynamic method calls

Builder getBaseQuery()

$this setObservableEvents(array $observables) Set the observable event

mixed getParentKey() Get the key value of the parent's local key.

Builder getRelationCountQuery(

string relatedUpdatedAt() Get the name of the related model's "updated