code: def index_ndim(index):
      from .core import Tensor
  
      if isinstance(index, Tensor) and index.dtype == np.bool_:
          # boolean indexing will occupy the ndim
          return index.ndim
  
      return 1 if index is not None else 0
  
imports: import inspect
  import itertools
  import operator
  from collections import OrderedDict
  from collections.abc import Iterable
  from functools import lru_cache, reduce, wraps
  from math import ceil
  from numbers import Integral
  from typing import Dict, List, Union
  import numpy
  from ..core import ExecutableTuple, recursive_tile
  from ..utils import lazy_import
  from ..lib.mmh3 import hash_from_buffer
label_desc: Use image node_id 11 for calling a global function with example usage: index_ndim(index) and returns: unknown, index