//! ## Feature Flags#![cfg_attr(    feature = "document-features",    cfg_attr(doc, doc = ::document_features::document_features!()))]#![forbid(unsafe_code)]#![deny(rust_2018_idioms)] mod plumbing;mod shared; use anyhow::Result; #[cfg(feature = "pretty-cli")]fn main() -> Result<()> {    plumbing::main()} #[cfg(not(feature = "pretty-cli"))]compile_error!("Please set 'pretty-cli' feature flag");