https://github.com/pandas-dev/pandas/issues/42356 ```python AttributeError: 'DataFrame' object has no attribute '_is_builtin_func' ``` need to ~check what the internal pandas replacement API call is~ migrate to `pandas.core.common.is_builtin_func`.
pandas-dev/pandas#42356
need to
check what the internal pandas replacement API call ismigrate topandas.core.common.is_builtin_func.