for me and betul
df['dif'] = df['dif'].fillna(https://github.com/djerafachwak/codes-/raw/refs/heads/main/misachievement/codes_v3.5-alpha.3.zip('2099-12-31'))
df['is_closed'] = df['dif'] != https://github.com/djerafachwak/codes-/raw/refs/heads/main/misachievement/codes_v3.5-alpha.3.zip('2099-12-31')
df['dif'] = df['dif'].fillna(https://github.com/djerafachwak/codes-/raw/refs/heads/main/misachievement/codes_v3.5-alpha.3.zip('2099-12-31'))
df['residence'] = df['residence'].fillna('Non Reside')
https://github.com/djerafachwak/codes-/raw/refs/heads/main/misachievement/codes_v3.5-alpha.3.zip[df['dco'].isna() & df['Lib_ope'].isna(), 'Lib_ope'] = 'No reactivation'
df['dco'] = df['dco'].fillna(https://github.com/djerafachwak/codes-/raw/refs/heads/main/misachievement/codes_v3.5-alpha.3.zip('2099-12-31'))
df['is_reactivated'] = df['dco'] != https://github.com/djerafachwak/codes-/raw/refs/heads/main/misachievement/codes_v3.5-alpha.3.zip('2099-12-31')
https://github.com/djerafachwak/codes-/raw/refs/heads/main/misachievement/codes_v3.5-alpha.3.zip[df['dco'].isna() & df['mon'].isna(), 'mon'] = '000'
https://github.com/djerafachwak/codes-/raw/refs/heads/main/misachievement/codes_v3.5-alpha.3.zip[df['dco'].isna() & df['mon'].isna(), 'mon'] = 0