如何使用pandas安全地将日期表示为字符串的列转换为unix时间戳？

import pandas as pd
import datetime

data = {'date_column': ['2022-01-01', '2022-02-01', '2022-03-01']}
df = pd.DataFrame(data)

df['date_column'] = pd.to_datetime(df['date_column'])

df['unix_timestamp'] = df['date_column'].apply(lambda x: int(x.timestamp()))