Cargo Features

iso_currency has no features set by default.

iso_currency = { version = "0.4.4", features = ["with-serde", "iterator"] }
with-serde = serde
iterator = strum

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

serde with-serde?
strum iterator?

Enables strum ^0.25.0