code: def inspect_main(argv: list[str], /) -> int:
      """Debug functionality to print out an inventory"""
      if len(argv) < 1:
          print(
              "Print out an inventory file.\n"
              "Error: must specify local path or URL to an inventory file.",
              file=sys.stderr,
          )
          return 1
  
      class MockConfig:
          intersphinx_timeout: int | None = None
          tls_verify = False
          tls_cacerts: str | dict[str, str] | None = None
          user_agent: str = ""
  
      class MockApp:
          srcdir = ""
          config = MockConfig()
  
      try:
          filename = argv[0]
          inv_data = fetch_inventory(MockApp(), "", filename)  # type: ignore[arg-type]
          for key in sorted(inv_data or {}):
              print(key)
              inv_entries = sorted(inv_data[key].items())
              for entry, (
                  _proj,
                  _ver,
                  url_path,
                  display_name,
              ) in inv_entries:
                  display_name = display_name * (display_name != "-")
                  print(
                      f"    {entry:<40} {display_name:<40}: {url_path}"
                  )
      except ValueError as exc:
          print(exc.args[0] % exc.args[1:], file=sys.stderr)
          return 1
      except Exception as exc:
          print(f"Unknown error: {exc!r}", file=sys.stderr)
          return 1
      else:
          return 0
  
imports: from __future__ import annotations
  import concurrent.futures
  import functools
  import posixpath
  import re
  import sys
  import time
  from os import path
  from typing import TYPE_CHECKING, cast
  from urllib.parse import urlsplit, urlunsplit
  from docutils import nodes
  from docutils.utils import relative_path
  import sphinx
  from sphinx.addnodes import pending_xref
  from sphinx.builders.html import INVENTORY_FILENAME
  from sphinx.errors import ExtensionError
  from sphinx.locale import _, __
  from sphinx.transforms.post_transforms import ReferencesResolver
  from sphinx.util import logging, requests
  from sphinx.util.docutils import CustomReSTDispatcher, SphinxRole
  from sphinx.util.inventory import InventoryFile
label_desc: Use image node_id 19 for calling a global function with example usage: inspect_main() and returns: int, int, int, int