PHP Déclaration de propriétés de type callable

<?php

/**
 * @author Anderson FACHINA <anderson.fachina@outlook.fr>
 * 
 * @property string $columnProperty
 * Column property to be used in the export (Must match a property of the entity) if not a string use the normalizer to format the value
 * @property string $columnTitle
 * Column title to be shown in the exportation result
 * @property string|null $columnDescription
 * Column description
 * @property bool $excludeFromExcel
 * Whether to exclude the column from the Excel export
 * @property bool $excludeFromPDF
 * Whether to exclude the column from the PDF export
 * @property bool $isStringifier
 * Whether to use the stringifier to export the column (Only one column must be a stringifier)
 * @property callable|null $normalizer
 * Normalizer to be used to format the column value
 */
class ExportSchemaProps {

    public function __construct(
        public string $columnProperty,
        public string $columnTitle,
        public ?string $columnDescription = null,
        public bool $excludeFromExcel = false,
        public bool $excludeFromPDF = false,
        public bool $isStringifier = false,
        public callable|null $normalizer = null
    ){
    }
}

J'ai créer cette classe pour un module d'exportation mais PHP Intelephense renvoie cette erreur:

Property ExportSchemaProps::$normalizer cannot have type ?callable