Why PacketBuilder::ipv4() takes [u8;4] as its ip arguments?

[lyoh33]

Thanks for your great working for this crate, but [u8; 4] is not convinient as input type.
Do you have any plan that implement a trait like
pub trait IntoIpv4Addr{ fn into_ipv4(&self) -> Result<Ipv4Addr> }
and change the method to
pub fn ipv4<A: IntoIpv4Addr>(source: A, ...) -> PacketBuilderStep<IpHeaders>
or any other alternative way to make life easier?
I hope I've made myself clear