Resource $recordTitleAttribute from relation

Hi, everyone! How can I set

$recordTitleAttribute

$recordTitleAttribute

$recordTitleAttribute

$recordTitleAttribute from relation:
Let's say, a WarehouseItem has many Products, and I can set

$recordTitleAttribute = 'product_id'

$recordTitleAttribute = 'product_id'

$recordTitleAttribute = 'product_id'

$recordTitleAttribute = 'product_id', but I can't set it to

 'product.name'

'product.name'

 'product.name'

'product.name' or

 'product.sku'

'product.sku'

 'product.sku'

'product.sku', for example.
When I set

protected static ?string $recordTitleAttribute = 'product'

protected static ?string $recordTitleAttribute = 'product'

protected static ?string $recordTitleAttribute = 'product'

protected static ?string $recordTitleAttribute = 'product' it returns all product content in json format .

Solution

Solution founded: just needed to add

public static function getRecordTitle(?Model $record): string|null|Htmlable
    {
        return $record->product->name;
    }

public static function getRecordTitle(?Model $record): string|null|Htmlable
    {
        return $record->product->name;
    }

public static function getRecordTitle(?Model $record): string|null|Htmlable
    {
        return $record->product->name;
    }

public static function getRecordTitle(?Model $record): string|null|Htmlable
    {
        return $record->product->name;
    }