Function dynamic_relational_append_rate_limit_event 

pub fn dynamic_relational_append_rate_limit_event(
    app_root: &Path,
    runtime_conf_path: Option<&Path>,
    app_id: Option<&str>,
    policy_key: &str,
    bucket_key: &str,
    outcome: &str,
) -> Result<(), DatabaseError>

Appends one rate-limit audit event through the configured relational backend.