The property created_at does not exist on FaithGen\Messages\Http\Resources\Message. Since you implemented __get, consider adding a @property annotation.
The method comments() does not exist on FaithGen\Messages\Http\Resources\Message. Since you implemented __call, consider adding a @method annotation.
(
Ignorable by Annotation
)
If this is a false-positive, you can also ignore this issue in your code via the ignore-call annotation