Type Alias EuroAmount 

pub type EuroAmount = Amount<5>;

A monetary amount in euro at 10⁻⁵-EUR resolution.

billing 0.12 dropped its own EuroAmount alias — the engine is currency-agnostic and the name asserted a currency the type does not carry. Netznutzungsentgelte are euro-denominated by statute, so the alias is correct here; it just belongs to the domain crate rather than the engine.

Aliased Type

pub struct EuroAmount(/* private fields */);