code: public static final Function<Long,String> toCurrencyStr() {
          return (Function<Long,String>)((Function)FnNumber.toCurrencyStr());
      }
docs: <p>
  It returns the {@link String} representation of the target as a currency in the
  default {@link Locale}
  </p>
  
  @return the {@link String} representation of the input as a currency