Function py_load_coinapi_trades 

pub fn py_load_coinapi_trades(
    filepath: PathBuf,
    instrument_id: InstrumentId,
    price_precision: Option<u8>,
    size_precision: Option<u8>,
    limit: Option<usize>,
) -> PyResult<Vec<TradeTick>>

Loads trade ticks from a CoinAPI T-TRADES flat file, inferring each precision not given.

Errors

Returns an error if the file cannot be read or a row is invalid. Python receives a ValueError.