def METHOD_NAME(self, asset, data):
    if "Adj Close" in data:
        del data["Adj Close"]
    data = data.rename(
        columns={
            "Open": "open",
            "High": "high",
            "Low": "low",
            "Close": "close",
            "Volume": "volume",
            "Dividends": "dividend",
            "Stock Splits": "stock_splits",
        },
    )
    data["price_change"] = data["close"].pct_change()
    data["dividend_yield"] = data["dividend"] / data["close"]
    data["return"] = data["dividend_yield"] + data["price_change"]
    self._data_store[asset] = data
    return data