如何在oro中选择类型的datagrid中传递动态参数？

I need to send dynamic parameter into method which be assigned to load choices on datagrid.

Now I could send hard coded parameter easily, but I don't know how can I do this dynamically?

    columns:
        targetName:
            label: Target Entity
            choices: "@finance.custom.loadSubcategoriesByCategory('category')"

I need to pass 'category' dynamically. Regards