Function get_serializable_bytes_non_empty

pub fn get_serializable_bytes_non_empty<T, A, F>(
    elements: &[A],
) -> Option<Vec<u8>>
where
    T: VarULE + ?Sized,
    A: EncodeAsVarULE<T>,
    F: VarZeroVecFormat,

Collects the bytes for a VarZeroSlice into a Vec.