Function run_suite 

pub fn run_suite(
    dir: &Path,
    only: Option<&str>,
    provider: &Arc<dyn ModelProvider>,
    secret: Option<&str>,
    keep: Option<&Path>,
    repeat: usize,
) -> CommandResult

Runs the suite at dir (optionally one case) repeat times with provider. Repeated rounds keep their cases under keep/round-<n>/.