code: def page(data, start=0, screen_lines=0, pager_cmd=None):
      """Display content in a pager, piping through a pager after a certain length.
  
      data can be a mime-bundle dict, supplying multiple representations,
      keyed by mime-type, or text.
  
      Pager is dispatched via the `show_in_pager` IPython hook.
      If no hook is registered, `pager_page` will be used.
      """
      # Some routines may auto-compute start offsets incorrectly and pass a
      # negative value.  Offset to 0 for robustness.
      start = max(0, start)
  
      # first, try the hook
      ip = get_ipython()
      if ip:
          try:
              ip.hooks.show_in_pager(
                  data, start=start, screen_lines=screen_lines
              )
              return
          except TryNext:
              pass
  
      # fallback on default pager
      return pager_page(data, start, screen_lines, pager_cmd)
  
imports: import os
  import io
  import re
  import sys
  import tempfile
  import subprocess
  from io import UnsupportedOperation
  from pathlib import Path
  from IPython import get_ipython
  from IPython.display import display
  from IPython.core.error import TryNext
  from IPython.utils.data import chop
  from IPython.utils.process import system
  from IPython.utils.terminal import get_terminal_size
  from IPython.utils import py3compat
label_desc: Use image node_id 6 for calling a global function with example usage: page(data, start, screen_lines, pager_cmd) and returns: pager_page