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use std::time::SystemTime;

pub fn unique_identifier(prefix: &str) -> String {
   let e = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH);
   if let Ok(e) = e {
      format!("_uid_{}_{}_{}", prefix, e.as_secs(), e.subsec_nanos())
   } else {
      format!("_uid_{}_error", prefix)
   }
}