Method _read_calendars

scripts/dump_bin.py:187–193

(calendar_path: Path)

    @staticmethod
    def _read_calendars(calendar_path: Path) -> List[pd.Timestamp]:
        return sorted(
            map(
                pd.Timestamp,
                pd.read_csv(calendar_path, header=None).loc[:, 0].tolist(),
            )
        )

    def _read_instruments(self, instrument_path: Path) -> pd.DataFrame:
        df = pd.read_csv(