code: def _convert_slice_indexer(
      self, key: slice, kind: Literal["loc", "getitem"]
  ):
      if not (key.step is None or key.step == 1):
          # GH#31658 if label-based, we require step == 1,
          #  if positional, we disallow float start/stop
          msg = "label-based slicing with step!=1 is not supported for IntervalIndex"
          if kind == "loc":
              raise ValueError(msg)
          if kind == "getitem":
              if not is_valid_positional_slice(key):
                  # i.e. this cannot be interpreted as a positional slice
                  raise ValueError(msg)
  
      return super()._convert_slice_indexer(key, kind)
  
imports: from __future__ import annotations
  from operator import le, lt
  import textwrap
  from typing import TYPE_CHECKING, Any, Literal
  import numpy
  from pandas._libs import lib
  from pandas._libs.interval import Interval, IntervalMixin, IntervalTree
  from pandas._libs.tslibs import BaseOffset, Period, Timedelta, Timestamp, to_offset
  from pandas.errors import InvalidIndexError
  from pandas.util._decorators import Appender, cache_readonly
  from pandas.util._exceptions import rewrite_exception
  from pandas.core.dtypes.cast import find_common_type, infer_dtype_from_scalar, maybe_box_datetimelike, maybe_downcast_numeric, maybe_upcast_numeric_to_64bit
  from pandas.core.dtypes.common import ensure_platform_int, is_float_dtype, is_integer, is_integer_dtype, is_list_like, is_number, is_object_dtype, is_scalar, pandas_dtype
  from pandas.core.dtypes.dtypes import DatetimeTZDtype, IntervalDtype
  from pandas.core.dtypes.missing import is_valid_na_for_dtype
  from pandas.core.algorithms import unique
  from pandas.core.arrays.datetimelike import validate_periods
  from pandas.core.arrays.interval import IntervalArray, _interval_shared_docs
  import pandas.core.common
  from pandas.core.indexers import is_valid_positional_slice
  import pandas.core.indexes.base
  from pandas.core.indexes.base import Index, _index_shared_docs, ensure_index, maybe_extract_name
  from pandas.core.indexes.datetimes import DatetimeIndex, date_range
  from pandas.core.indexes.extension import ExtensionIndex, inherit_names
  from pandas.core.indexes.multi import MultiIndex
  from pandas.core.indexes.timedeltas import TimedeltaIndex, timedelta_range
label_desc: Use image node_id 24 for calling the IntervalIndex obj's underlying member method code with example usage: obj._convert_slice_indexer(key, kind) and returns: super