How to use the @webiny/app-i18n/hooks/useI18N.useI18N function in @webiny/app-i18n

insertField,
        updateField,
        deleteField,
        data,
        moveField,
        moveRow,
        getFieldPlugin
    } = useFormEditor();
    const [editingField, setEditingField] = useState(null);
    const [dropTarget, setDropTarget]: [FieldLayoutPositionType, Function] = useState(null);

    const editField = useCallback(field => {
        setEditingField(cloneDeep(field));
    });

    const i18n = useI18N();

    const handleDropField = useCallback((source, dropTarget) => {
        const { pos, name, ui } = source;

        if (name === "custom") {
            editField({});
            setDropTarget(dropTarget);
            return;
        }

        if (ui === "row") {
            // Reorder rows.
            // Reorder logic is different depending on the source and target position.
            return moveRow(pos.row, dropTarget.row);
        }