def METHOD_NAME() -> None:
    # Arrange, Act, Assert
    with pytest.raises(ValueError):
        SyntheticInstrument(
            symbol=Symbol("BTC-ETH"),
            price_precision=8,
            components=[BTCUSDT_BINANCE.id, ETHUSDT_BINANCE.id],
            formula="z)(?,.",  # <-- Invalid
            ts_event=0,
            ts_init=0,
        )