Is there a way to know if a specific size of an item is not available. For example this item https://us.shein.com/SHEIN-LUNE-Allover-Print-Batwing-Sleeve-Blouse-p-13492974-cat-1733.html?src_identifier=on%3DIMAGE_COMPONENT`cn%3Dcat`hz%3DhotZone_16`ps%3D4_9`jc%3Dreal_2030&src_module=Women&src_tab_page_id=page_home1693594439550&mallCode=1&imgRatio=3-4 has 6 sizes listed and all 6 sizes are in the product detail API response, but only 2 sizes are available. Is there anything in the API response that tells me if a specific size is available or not?