Cargo Features

na-paper-account has no features set by default.

[dependencies]
na-paper-account = { version = "0.2.3", features = ["async"] }
async = async-trait, tokio

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.

tokio async?
async-trait async?