code: def itemsize(dt):
      """Itemsize of dtype
  
      Try to return the itemsize of the base element, return 8 as a fallback
      """
      result = dt.base.itemsize
      if result > 255:
          result = 8
      return result
  
file_path: distributed/distributed/protocol/numpy.py
imports: from __future__ import annotations
  import math
  import numpy
  from packaging.version import parse
  from distributed.protocol import pickle
  from distributed.protocol.serialize import dask_deserialize, dask_serialize
  from distributed.utils import log_errors
label_desc: Use image node_id 1 for calling a global function with example usage: itemsize(dt) and returns: result