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use error_backtrace::ErrorBacktrace;

fn main() -> Result<(), ()> {
    let value = maybe_error()?;
    // use value
    Ok(())
}

fn maybe_error() -> Result<(), ()> {
    let value = error_source().trace()?;
    // Do something with value
    Ok(())
}

fn error_source() -> Result<(), ()> {
    Err(())
}