class_docstr: Helper class for the .loc accessor
class_docstr_tok: ["Helper","class","for","the",".loc","accessor"]
code: def __getitem__(self, key):
      if isinstance(key, tuple):
          # multi-dimensional selection
          if len(key) > self.obj.ndim:
              # raise from pandas
              msg = "Too many indexers"
              raise IndexingError(msg)
  
          iindexer = key[0]
          cindexer = key[1]
      else:
          # if self.obj is Series, cindexer is always None
          iindexer = key
          cindexer = None
      return self._loc(iindexer, cindexer)
  
imports: from __future__ import annotations
  import bisect
  from collections import defaultdict
  from datetime import datetime
  import numpy
  import pandas
  from pandas.api.types import is_bool_dtype
  from dask.array.core import Array
  from dask.base import tokenize
  from dask.dataframe import methods
  from dask.dataframe._compat import IndexingError
  from dask.dataframe.core import Series, new_dd_object
  from dask.dataframe.utils import is_index_like, is_series_like, meta_nonempty
  from dask.highlevelgraph import HighLevelGraph
  from dask.utils import is_arraylike
label_desc: Use image node_id 2 for calling the _LocIndexer obj's underlying member method code with example usage: obj.__getitem__(key) and returns: self