'string', 'tenant_id' => 'string', 'customer_id' => 'string', 'device_profile_id' => 'string', 'firmware_id' => 'string', 'software_id' => 'string', 'external_id' => 'string', 'additional_info' => 'array', 'device_data' => 'array', ]; public function asset() { return $this->belongsTo(Asset::class, 'asset_id'); } }