docstr: Conform data manager to new index.
docstr_tok: ["Conform","data","manager","to","new","index","."]
code: def reindex_axis(
      self,
      new_index: Index,
      axis: AxisInt,
      fill_value=None,
      only_slice: bool = False,
  ) -> Self:
      """
      Conform data manager to new index.
      """
      new_index, indexer = self.axes[axis].reindex(new_index)
  
      return self.reindex_indexer(
          new_index,
          indexer,
          axis=axis,
          fill_value=fill_value,
          copy=False,
          only_slice=only_slice,
      )
  
imports: from __future__ import annotations
  from typing import TYPE_CHECKING, Any, Literal, cast, final
  import numpy
  from pandas._config import using_copy_on_write, warn_copy_on_write
  from pandas._libs import algos, lib
  from pandas.errors import AbstractMethodError
  from pandas.util._validators import validate_bool_kwarg
  from pandas.core.dtypes.cast import find_common_type, np_can_hold_element
  from pandas.core.dtypes.dtypes import ExtensionDtype, SparseDtype
  from pandas.core.base import PandasObject
  from pandas.core.construction import extract_array
  from pandas.core.indexes.api import Index, default_index
label_desc: Use image node_id 7 for calling the DataManager obj's underlying member method code with example usage: obj.reindex_axis(new_index, axis, fill_value, only_slice) and returns: self