code: def write_zeros(
      fileobj: io.IOBase, count: int, block_size: int = 8194
  ) -> None:
      """Write `count` zero bytes to `fileobj`
  
      Parameters
      ----------
      fileobj : file-like object
          with ``write`` method
      count : int
          number of bytes to write
      block_size : int, optional
          largest continuous block to write.
      """
      nblocks = int(count // block_size)
      rem = count % block_size
      blk = b"\x00" * block_size
      for bno in range(nblocks):
          fileobj.write(blk)
      fileobj.write(b"\x00" * rem)
  
imports: from __future__ import annotations
  import io
  import sys
  import typing
  import warnings
  from functools import reduce
  from operator import getitem, mul
  from os.path import exists, splitext
  import numpy
  from ._compression import COMPRESSED_FILE_LIKES
  from .casting import OK_FLOATS, shared_range
  from .externals.oset import OrderedSet
label_desc: Use image node_id 9 for calling a global function with example usage: write_zeros(fileobj, count, block_size) without return types