data/spatio_temporal_aggregation/rqa_u1o9.py

def true_code():
    import pandas as pd
    df = pd.read_csv("raw_data/main_data.csv")
    df['Timestamp'] = pd.to_datetime(df['Timestamp'])
    data = df[(df['Timestamp'].dt.month == 6) & (df['Timestamp'].dt.day == 5) & (df['Timestamp'].dt.year == 2020)].groupby('station')['PM2.5'].min().idxmin()
    print(data)

true_code()