use anyhow::Result;use rustdoc::{convert_rustdoc_to_markdown, RustdocItem};use std::path::{Path, PathBuf}; fn fetch_and_convert_docs(crate_docs_path: &Path) -> Result<(String, Vec<RustdocItem>)> {    if !crate_docs_path.exists() {        anyhow::bail!("File not found at {:?}", crate_docs_path);    }     let html_content = std::fs::read_to_string(crate_docs_path)?;    let (markdown, items) = convert_rustdoc_to_markdown(html_content.as_bytes())?;     Ok((markdown, items))} fn main() -> Result<()> {    let args: Vec<String> = std::env::args().collect();    if args.len() != 2 {        println!("Usage: {} <path_to_crate_docs>", args[0]);        std::process::exit(1);    }     let crate_docs_path = PathBuf::from(&args[1]);     let (markdown, items) = fetch_and_convert_docs(&crate_docs_path.join("index.html"))?;     println!("Converted Markdown:\n{}", markdown);     println!("\nLinked item contents:");    for item in &items {        println!("- {}", item.href);        let item_path = crate_docs_path.join(item.href.as_ref());        match fetch_and_convert_docs(&item_path) {            Ok((item_markdown, _)) => {                println!("{}\n", item_markdown);            }            Err(e) => {                eprintln!(                    "Failed to fetch and convert item: {} for path {:?}",                    e, item.href                );            }        }    }     Ok(())}