'datetime', 'completed_at' => 'datetime', 'checklist_results' => 'array', 'handover_documents' => 'array', ]; public function installedAsset() { return $this->belongsTo(CustomerInstalledAsset::class, 'installed_asset_id'); } public function performedBy() { return $this->belongsTo(User::class, 'performed_by'); } }