emptyItems :: ItemsRelated schema
emptyItems = ItemsRelated
    { _irItems      = Nothing
    , _irAdditional = Nothing
    }
emptyItems :: ItemsRelated schema
emptyItems = ItemsRelated
    { _irItems      = Nothing
    , _irAdditional = Nothing
    }
emptyItems = ItemsRelated
    { _irItems      = Nothing
    , _irAdditional = Nothing
    }