code: def local_memory_access_granularity(dev):
      """Return the number of bytes per bank in local memory."""
      return 4
  
imports: import pyopencl
  from pytools import memoize
  from typing import Dict, Optional, Tuple
label_desc: Use image node_id 7 for calling a global function with example usage: local_memory_access_granularity(dev) and returns: int