Function try_unary 

pub fn try_unary<I, F, O>(
    array: &PrimitiveArray<I>,
    op: F,
) -> Result<PrimitiveArray<O>, ArrowError>
where
    I: ArrowPrimitiveType,
    O: ArrowPrimitiveType,
    F: Fn(<I as ArrowPrimitiveType>::Native) -> Result<<O as ArrowPrimitiveType>::Native, ArrowError>,

See [PrimitiveArray::try_unary]