import pandas as pd
def actors_and_directors(actor_director: pd.DataFrame) -> pd.DataFrame:
a=actor_director.groupby(['actor_id','director_id']).nunique().reset_index()
b=a[a['timestamp']>=3]
return b.loc[:,['actor_id','director_id']]
import pandas as pd
def actors_and_directors(actor_director: pd.DataFrame) -> pd.DataFrame:
a=actor_director.groupby(['actor_id','director_id']).nunique().reset_index()
b=a[a['timestamp']>=3]
return b.loc[:,['actor_id','director_id']]