code: def get_fill_func(method, ndim: int = 1):
      method = clean_fill_method(method)
      if ndim == 1:
          return _fill_methods[method]
      return {"pad": _pad_2d, "backfill": _backfill_2d}[method]
  
imports: from __future__ import annotations
  from functools import partial, wraps
  from typing import TYPE_CHECKING, Any, cast
  import numpy
  from pandas._libs import NaT, algos, lib
  from pandas._typing import ArrayLike, Axis, AxisInt, F, npt
  from pandas.compat._optional import import_optional_dependency
  from pandas.core.dtypes.cast import infer_dtype_from
  from pandas.core.dtypes.common import is_array_like, is_numeric_v_string_like, is_object_dtype, needs_i8_conversion
  from pandas.core.dtypes.missing import is_valid_na_for_dtype, isna, na_value_for_dtype
label_desc: Use image node_id 22 for calling a global function with example usage: get_fill_func(method, ndim) and returns: dict, _fill_methods