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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def render_entry(entry_id, slug_text='', category=''):
 """ Render an entry page. Arguments: entry_id -- The numeric ID of the entry to render slug_text -- The expected URL slug text category -- The expected category """


    # pylint: disable=too-many-return-statements

    # check if it's a valid entry
    record = model.Entry.get(id=entry_id)
    if not record:
        # It's not a valid entry, so see if it's a redirection
        path_redirect = get_redirect()
        if path_redirect:
            return path_redirect

        logger.info("Attempted to retrieve nonexistent entry %d", entry_id)
        raise http_error.NotFound("No such entry")

    # see if the file still exists
    if not os.path.isfile(record.file_path):
        expire_record(record)

        # See if there's a redirection
        path_redirect = get_redirect()
        if path_redirect:
            return path_redirect

        raise http_error.NotFound("No such entry")

    # Show an access denied error if the entry has been set to draft mode
    if record.status == model.PublishStatus.DRAFT.value:
        raise http_error.Forbidden("Entry not available")
    # Show a gone error if the entry has been deleted
    if record.status == model.PublishStatus.GONE.value:
        raise http_error.Gone()

    # check if the canonical URL matches
    if record.category != category or record.slug_text != slug_text:
        # This could still be a redirected path...
        path_redirect = get_redirect()
        if path_redirect:
            return path_redirect

        # Redirect to the canonical URL
        return redirect(url_for('entry',
                                entry_id=entry_id,
                                category=record.category,
                                slug_text=record.slug_text))

    # if the entry canonically redirects, do that now
    entry_redirect = record.redirect_url
    if entry_redirect:
        return redirect(entry_redirect)

    entry_template = (record.entry_template
                      or Category(category).get('Entry-Template')
                      or 'entry')

    tmpl = map_template(category, entry_template)
    if not tmpl:
        raise http_error.BadRequest("Missing entry template")

    # Get the viewable entry
    entry_obj = Entry(record)

    # does the entry-id header mismatch? If so the old one is invalid
    if int(entry_obj.get('Entry-ID')) != record.id:
        expire_record(record)
        return redirect(url_for('entry', entry_id=int(entry_obj.get('Entry-Id'))))

    rendered, etag = render_publ_template(
        tmpl,
        _url_root=request.url_root,
        entry=entry_obj,
        category=Category(category))

    if request.if_none_match.contains(etag):
        return 'Not modified', 304

    return rendered, {'Content-Type': mime_type(tmpl),
                      'ETag': etag}