Do I really need to specify phf_shared dependency if I need to use a custom struct as key of a map?

[GyulyVGC]

Hi everybody!

I'd like to use a custom tuple struct as key of my phf map and to do so apparently I need to implement the following traits:

• phf_shared::PhfHash
• phf_shared::PhfBorrow<B>
• phf_shared::FmtConst

I managed to do it by specifying phf_shared both as a dependency and as a build-dependency, but this doesn't seem a really clean solution to me.

Is there any other (cleaner) way to access these traits / use a custom struct as key of the map?