code: def read_n_bytes(f, N):
      """read_n_bytes(file, n)
  
      Read n bytes from the given file, or less if the file has less
      bytes. Returns zero bytes if the file is closed.
      """
      bb = bytes()
      while len(bb) < N:
          extra_bytes = f.read(N - len(bb))
          if not extra_bytes:
              break
          bb += extra_bytes
      return bb
  
imports: import os
  from io import BytesIO
  import zipfile
  import tempfile
  import shutil
  import enum
  import warnings
  from ..core import urlopen, get_remote_file
  from pathlib import Path
  from urllib.parse import urlparse
  from typing import Optional
label_desc: Use image node_id 1 for calling a global function with example usage: read_n_bytes(f, N) and returns: bb