Function isna

dask/dataframe/dask_expr/_collection.py:6384–6388

(arg)

def isna(arg):
    if isinstance(arg, FrameBase):
        return arg.isna()
    else:
        return from_pandas(arg).isna()


def elemwise(op, *args, meta=no_default, out=None, transform_divisions=True, **kwargs):