use anyhow::Result;use anyhow::anyhow;use std::env;use std::path::PathBuf;fn main() -> Result<()> {    let mut args = env::args_os().skip(1);    let output_path = PathBuf::from(        args.next()            .ok_or_else(|| anyhow!("missing output path argument"))?,    );    let payload = args        .next()        .ok_or_else(|| anyhow!("missing payload argument"))?        .into_string()        .map_err(|_| anyhow!("payload must be valid UTF-8"))?;    let temp_path = output_path.with_extension("json.tmp");    std::fs::write(&temp_path, payload)?;    std::fs::rename(&temp_path, &output_path)?;    Ok(())}