venv/lib/python3.11/site-packages/pandas/tests/indexes/conftest.py

import numpy as np
import pytest

from pandas import (
    Series,
    array,
)


@pytest.fixture(params=[None, False])
def sort(request):
    """
    Valid values for the 'sort' parameter used in the Index
    setops methods (intersection, union, etc.)

    Caution:
        Don't confuse this one with the "sort" fixture used
        for DataFrame.append or concat. That one has
        parameters [True, False].

        We can't combine them as sort=True is not permitted
        in the Index setops methods.
    """
    return request.param


@pytest.fixture(params=["D", "3D", "-3D", "h", "2h", "-2h", "min", "2min", "s", "-3s"])
def freq_sample(request):
    """
    Valid values for 'freq' parameter used to create date_range and
    timedelta_range..
    """
    return request.param


@pytest.fixture(params=[list, tuple, np.array, array, Series])
def listlike_box(request):
    """
    Types that may be passed as the indexer to searchsorted.
    """
    return request.param