{
    "amasty_amcheckout_placeholder": {
        "column": {
            "placeholder_id": true,
            "attribute_id": true,
            "placeholder": true,
            "store_id": true
        },
        "constraint": {
            "PRIMARY": true,
            "AMASTY_AMCHKT_PLACEHOLDER_ATTR_ID_EAV_ATTR_ATTR_ID": true,
            "AMASTY_AMCHECKOUT_PLACEHOLDER_STORE_ID_STORE_STORE_ID": true
        }
    }
}