import pandas as pd
from pandas.api.types import CategoricalDtype

df = pd.DataFrame(
    {
        "ticket": [101, 102, 103, 104, 105, 106],
        "team": ["api", "frontend", "api", "ops", "frontend", "api"],
        "priority": ["normal", "urgent", "low", "normal", "low", "urgent"],
    }
)