hasMany Relationship has not withTrashed()

I seen this answer to a similar question here on StackOverflow: https://stackoverflow.com/a/40654005/1055279

Here I see

public function order() {
     return $this->belongsToMany('Order')->withTrashed();
 }

In my scenario I've Customer models that have n Devices

// Relation 1 to n from Customer model to Device model
public function devices()
{
    return $this->hasMany('App\Device')->withTrashed();
}

Note I've added withTrashed, because I've ALWAYS the need to retrieve softDeleted data.

Also, I'm using ¯SoftDeletetrait on both models, and both table havedeleted_at` column.

The problem

Retriving devices from a customer model I got

message: "Call to undefined method Illuminate\Database\Eloquent\Relations\HasMany::withTrashed()"

Probably I'm using wrong syntax. I'm here to ask a kindly help.

• Laravel is @5.8.19
• PHP is @7.2.x

via Chebli Mohamed