Rust's static, strong type system enables robust command line interfaces.
The clap crate provides a builder API to parse and validate CLI arguments.
clap's derive feature lets developers declare CLI arguments through Rust types.
Defining CLI options as types improves code maintainability and readability.
Type-driven design reduces imperative parsing code and lowers test burden.
Public CLI types support semantic versioning checks via cargo-semver-checks.
clap's env feature allows seamless integration of environment variables into CLI.
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