Cargo Features

TraitMap has no features set by default.

[dependencies]
trait-map = { version = "0.3.1", features = ["derive"] }
derive = trait-map-derive

Allows you to #[derive(TraitMapEntry)]

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.

trait-map-derive derive?